This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at
your option) any later version.

This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
General Public License for more details.

On Debian GNU/Linux systems, the complete text of the GNU Lesser
General Public License can be found in
/usr/share/common-licenses/LGPL-2.1. 

This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.

You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.

On Debian GNU/Linux systems, the complete text of the GNU General Public
License can be found in /usr/share/common-licenses/GPL-2. 

This software is in the public domain. 

THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS
CREATIVE COMMONS PUBLIC LICENSE ("CCPL" OR "LICENSE"). THE WORK IS
PROTECTED BY COPYRIGHT AND/OR OTHER APPLICABLE LAW. ANY USE OF THE WORK
OTHER THAN AS AUTHORIZED UNDER THIS LICENSE OR COPYRIGHT LAW IS
PROHIBITED.

BY EXERCISING ANY RIGHTS TO THE WORK PROVIDED HERE, YOU ACCEPT AND
AGREE TO BE BOUND BY THE TERMS OF THIS LICENSE. TO THE EXTENT THIS
LICENSE MAY BE CONSIDERED TO BE A CONTRACT, THE LICENSOR GRANTS YOU THE
RIGHTS CONTAINED HERE IN CONSIDERATION OF YOUR ACCEPTANCE OF SUCH TERMS
AND CONDITIONS.

1. Definitions
 a. "Adaptation" means a work based upon the Work, or upon the Work and
    other pre-existing works, such as a translation, adaptation,
    derivative work, arrangement of music or other alterations of a
    literary or artistic work, or phonogram or performance and includes
    cinematographic adaptations or any other form in which the Work may
    be recast, transformed, or adapted including in any form
    recognizably derived from the original, except that a work that
    constitutes a Collection will not be considered an Adaptation for
    the purpose of this License. For the avoidance of doubt, where the
    Work is a musical work, performance or phonogram, the
    synchronization of the Work in timed-relation with a moving image
    ("synching") will be considered an Adaptation for the purpose of
    this License.
 b. "Collection" means a collection of literary or artistic works, such
    as encyclopedias and anthologies, or performances, phonograms or
    broadcasts, or other works or subject matter other than works
    listed in Section 1(f) below, which, by reason of the selection and
    arrangement of their contents, constitute intellectual creations,
    in which the Work is included in its entirety in unmodified form
    along with one or more other contributions, each constituting
    separate and independent works in themselves, which together are
    assembled into a collective whole. A work that constitutes a
    Collection will not be considered an Adaptation (as defined below)
    for the purposes of this License.
 c. "Creative Commons Compatible License" means a license that is
    listed at http://creativecommons.org/compatiblelicenses that has
    been approved by Creative Commons as being essentially equivalent
    to this License, including, at a minimum, because that license: (i)
    contains terms that have the same purpose, meaning and effect as
    the License Elements of this License; and, (ii) explicitly permits
    the relicensing of adaptations of works made available under that
    license under this License or a Creative Commons jurisdiction
    license with the same License Elements as this License.
 d. "Distribute" means to make available to the public the original and
    copies of the Work or Adaptation, as appropriate, through sale or
    other transfer of ownership.
 e. "License Elements" means the following high-level license
    attributes as selected by Licensor and indicated in the title of
    this License: Attribution, ShareAlike.
 f. "Licensor" means the individual, individuals, entity or entities
    that offer(s) the Work under the terms of this License.
 g. "Original Author" means, in the case of a literary or artistic
    work, the individual, individuals, entity or entities who created
    the Work or if no individual or entity can be identified, the
    publisher; and in addition (i) in the case of a performance the
    actors, singers, musicians, dancers, and other persons who act,
    sing, deliver, declaim, play in, interpret or otherwise perform
    literary or artistic works or expressions of folklore; (ii) in the
    case of a phonogram the producer being the person or legal entity
    who first fixes the sounds of a performance or other sounds; and,
    (iii) in the case of broadcasts, the organization that transmits
    the broadcast.
 h. "Work" means the literary and/or artistic work offered under the
    terms of this License including without limitation any production
    in the literary, scientific and artistic domain, whatever may be
    the mode or form of its expression including digital form, such as
    a book, pamphlet and other writing; a lecture, address, sermon or
    other work of the same nature; a dramatic or dramatico-musical
    work; a choreographic work or entertainment in dumb show; a musical
    composition with or without words; a cinematographic work to which
    are assimilated works expressed by a process analogous to
    cinematography; a work of drawing, painting, architecture,
    sculpture, engraving or lithography; a photographic work to which
    are assimilated works expressed by a process analogous to
    photography; a work of applied art; an illustration, map, plan,
    sketch or three-dimensional work relative to geography, topography,
    architecture or science; a performance; a broadcast; a phonogram; a
    compilation of data to the extent it is protected as a
    copyrightable work; or a work performed by a variety or circus
    performer to the extent it is not otherwise considered a literary
    or artistic work.
 i. "You" means an individual or entity exercising rights under this
    License who has not previously violated the terms of this License
    with respect to the Work, or who has received express permission
    from the Licensor to exercise rights under this License despite a
    previous violation.
 j. "Publicly Perform" means to perform public recitations of the Work
    and to communicate to the public those public recitations, by any
    means or process, including by wire or wireless means or public
    digital performances; to make available to the public Works in such
    a way that members of the public may access these Works from a
    place and at a place individually chosen by them; to perform the
    Work to the public by any means or process and the communication to
    the public of the performances of the Work, including by public
    digital performance; to broadcast and rebroadcast the Work by any
    means including signs, sounds or images.
 k. "Reproduce" means to make copies of the Work by any means including
    without limitation by sound or visual recordings and the right of
    fixation and reproducing fixations of the Work, including storage
    of a protected performance or phonogram in digital form or other
    electronic medium.

2. Fair Dealing Rights. Nothing in this License is intended to reduce,
limit, or restrict any uses free from copyright or rights arising from
limitations or exceptions that are provided for in connection with the
copyright protection under copyright law or other applicable laws.

3. License Grant. Subject to the terms and conditions of this License,
Licensor hereby grants You a worldwide, royalty-free, non-exclusive,
perpetual (for the duration of the applicable copyright) license to
exercise the rights in the Work as stated below:
 a. to Reproduce the Work, to incorporate the Work into one or more
    Collections, and to Reproduce the Work as incorporated in the
    Collections;
 b. to create and Reproduce Adaptations provided that any such
    Adaptation, including any translation in any medium, takes
    reasonable steps to clearly label, demarcate or otherwise identify
    that changes were made to the original Work. For example, a
    translation could be marked "The original work was translated from
    English to Spanish," or a modification could indicate "The original
    work has been modified.";
 c. to Distribute and Publicly Perform the Work including as
    incorporated in Collections; and,
 d. to Distribute and Publicly Perform Adaptations.
 e. For the avoidance of doubt:
      i. Non-waivable Compulsory License Schemes. In those
         jurisdictions in which the right to collect royalties through
         any statutory or compulsory licensing scheme cannot be waived,
         the Licensor reserves the exclusive right to collect such
         royalties for any exercise by You of the rights granted under
         this License;
     ii. Waivable Compulsory License Schemes. In those jurisdictions in
         which the right to collect royalties through any statutory or
         compulsory licensing scheme can be waived, the Licensor waives
         the exclusive right to collect such royalties for any exercise
         by You of the rights granted under this License; and,
     iii. Voluntary License Schemes. The Licensor waives the right to
         collect royalties, whether individually or, in the event that
         the Licensor is a member of a collecting society that
         administers voluntary licensing schemes, via that society,
         from any exercise by You of the rights granted under this
         License.

The above rights may be exercised in all media and formats whether now
known or hereafter devised. The above rights include the right to make
such modifications as are technically necessary to exercise the rights
in other media and formats. Subject to Section 8(f), all rights not
expressly granted by Licensor are hereby reserved.

4. Restrictions. The license granted in Section 3 above is expressly
made subject to and limited by the following restrictions:
 a. You may Distribute or Publicly Perform the Work only under the
    terms of this License. You must include a copy of, or the Uniform
    Resource Identifier (URI) for, this License with every copy of the
    Work You Distribute or Publicly Perform. You may not offer or
    impose any terms on the Work that restrict the terms of this
    License or the ability of the recipient of the Work to exercise the
    rights granted to that recipient under the terms of the License.
    You may not sublicense the Work. You must keep intact all notices
    that refer to this License and to the disclaimer of warranties with
    every copy of the Work You Distribute or Publicly Perform. When You
    Distribute or Publicly Perform the Work, You may not impose any
    effective technological measures on the Work that restrict the
    ability of a recipient of the Work from You to exercise the rights
    granted to that recipient under the terms of the License. This
    Section 4(a) applies to the Work as incorporated in a Collection,
    but this does not require the Collection apart from the Work itself
    to be made subject to the terms of this License. If You create a
    Collection, upon notice from any Licensor You must, to the extent
    practicable, remove from the Collection any credit as required by
    Section 4(c), as requested. If You create an Adaptation, upon
    notice from any Licensor You must, to the extent practicable,
    remove from the Adaptation any credit as required by Section 4(c),
    as requested.
 b. You may Distribute or Publicly Perform an Adaptation only under the
    terms of: (i) this License; (ii) a later version of this License
    with the same License Elements as this License; (iii) a Creative
    Commons jurisdiction license (either this or a later license
    version) that contains the same License Elements as this License
    (e.g., Attribution-ShareAlike 3.0 US)); (iv) a Creative Commons
    Compatible License. If you license the Adaptation under one of the
    licenses mentioned in (iv), you must comply with the terms of that
    license. If you license the Adaptation under the terms of any of
    the licenses mentioned in (i), (ii) or (iii) (the "Applicable
    License"), you must comply with the terms of the Applicable License
    generally and the following provisions: (I) You must include a copy
    of, or the URI for, the Applicable License with every copy of each
    Adaptation You Distribute or Publicly Perform; (II) You may not
    offer or impose any terms on the Adaptation that restrict the terms
    of the Applicable License or the ability of the recipient of the
    Adaptation to exercise the rights granted to that recipient under
    the terms of the Applicable License; (III) You must keep intact all
    notices that refer to the Applicable License and to the disclaimer
    of warranties with every copy of the Work as included in the
    Adaptation You Distribute or Publicly Perform; (IV) when You
    Distribute or Publicly Perform the Adaptation, You may not impose
    any effective technological measures on the Adaptation that
    restrict the ability of a recipient of the Adaptation from You to
    exercise the rights granted to that recipient under the terms of
    the Applicable License. This Section 4(b) applies to the Adaptation
    as incorporated in a Collection, but this does not require the
    Collection apart from the Adaptation itself to be made subject to
    the terms of the Applicable License.
 c. If You Distribute, or Publicly Perform the Work or any Adaptations
    or Collections, You must, unless a request has been made pursuant
    to Section 4(a), keep intact all copyright notices for the Work and
    provide, reasonable to the medium or means You are utilizing: (i)
    the name of the Original Author (or pseudonym, if applicable) if
    supplied, and/or if the Original Author and/or Licensor designate
    another party or parties (e.g., a sponsor institute, publishing
    entity, journal) for attribution ("Attribution Parties") in
    Licensor's copyright notice, terms of service or by other
    reasonable means, the name of such party or parties; (ii) the title
    of the Work if supplied; (iii) to the extent reasonably
    practicable, the URI, if any, that Licensor specifies to be
    associated with the Work, unless such URI does not refer to the
    copyright notice or licensing information for the Work; and (iv) ,
    consistent with Ssection 3(b), in the case of an Adaptation, a
    credit identifying the use of the Work in the Adaptation (e.g.,
    "French translation of the Work by Original Author," or "Screenplay
    based on original Work by Original Author"). The credit required by
    this Section 4(c) may be implemented in any reasonable manner;
    provided, however, that in the case of a Adaptation or Collection,
    at a minimum such credit will appear, if a credit for all
    contributing authors of the Adaptation or Collection appears, then
    as part of these credits and in a manner at least as prominent as
    the credits for the other contributing authors. For the avoidance
    of doubt, You may only use the credit required by this Section for
    the purpose of attribution in the manner set out above and, by
    exercising Your rights under this License, You may not implicitly
    or explicitly assert or imply any connection with, sponsorship or
    endorsement by the Original Author, Licensor and/or Attribution
    Parties, as appropriate, of You or Your use of the Work, without
    the separate, express prior written permission of the Original
    Author, Licensor and/or Attribution Parties.
 d. Except as otherwise agreed in writing by the Licensor or as may be
    otherwise permitted by applicable law, if You Reproduce, Distribute
    or Publicly Perform the Work either by itself or as part of any
    Adaptations or Collections, You must not distort, mutilate, modify
    or take other derogatory action in relation to the Work which would
    be prejudicial to the Original Author's honor or reputation.
    Licensor agrees that in those jurisdictions (e.g. Japan), in which
    any exercise of the right granted in Section 3(b) of this License
    (the right to make Adaptations) would be deemed to be a distortion,
    mutilation, modification or other derogatory action prejudicial to
    the Original Author's honor and reputation, the Licensor will waive
    or not assert, as appropriate, this Section, to the fullest extent
    permitted by the applicable national law, to enable You to
    reasonably exercise Your right under Section 3(b) of this License
    (right to make Adaptations) but not otherwise.

5. Representations, Warranties and Disclaimer

UNLESS OTHERWISE MUTUALLY AGREED TO BY THE PARTIES IN WRITING, LICENSOR
OFFERS THE WORK AS-IS AND MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY
KIND CONCERNING THE WORK, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE,
INCLUDING, WITHOUT LIMITATION, WARRANTIES OF TITLE, MERCHANTIBILITY,
FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR THE ABSENCE OF
LATENT OR OTHER DEFECTS, ACCURACY, OR THE PRESENCE OF ABSENCE OF
ERRORS, WHETHER OR NOT DISCOVERABLE. SOME JURISDICTIONS DO NOT ALLOW
THE EXCLUSION OF IMPLIED WARRANTIES, SO SUCH EXCLUSION MAY NOT APPLY TO
YOU.

6. Limitation on Liability. EXCEPT TO THE EXTENT REQUIRED BY APPLICABLE
LAW, IN NO EVENT WILL LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY FOR
ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES
ARISING OUT OF THIS LICENSE OR THE USE OF THE WORK, EVEN IF LICENSOR
HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

7. Termination
 a. This License and the rights granted hereunder will terminate
    automatically upon any breach by You of the terms of this License.
    Individuals or entities who have received Adaptations or
    Collections from You under this License, however, will not have
    their licenses terminated provided such individuals or entities
    remain in full compliance with those licenses. Sections 1, 2, 5, 6,
    7, and 8 will survive any termination of this License.
 b. Subject to the above terms and conditions, the license granted here
    is perpetual (for the duration of the applicable copyright in the
    Work). Notwithstanding the above, Licensor reserves the right to
    release the Work under different license terms or to stop
    distributing the Work at any time; provided, however that any such
    election will not serve to withdraw this License (or any other
    license that has been, or is required to be, granted under the
    terms of this License), and this License will continue in full
    force and effect unless terminated as stated above.

8. Miscellaneous
 a. Each time You Distribute or Publicly Perform the Work or a
    Collection, the Licensor offers to the recipient a license to the
    Work on the same terms and conditions as the license granted to You
    under this License.
 b. Each time You Distribute or Publicly Perform an Adaptation,
    Licensor offers to the recipient a license to the original Work on
    the same terms and conditions as the license granted to You under
    this License.
 c. If any provision of this License is invalid or unenforceable under
    applicable law, it shall not affect the validity or enforceability
    of the remainder of the terms of this License, and without further
    action by the parties to this agreement, such provision shall be
    reformed to the minimum extent necessary to make such provision
    valid and enforceable.
 d. No term or provision of this License shall be deemed waived and no
    breach consented to unless such waiver or consent shall be in
    writing and signed by the party to be charged with such waiver or
    consent.
 e. This License constitutes the entire agreement between the parties
    with respect to the Work licensed here. There are no
    understandings, agreements or representations with respect to the
    Work not specified here. Licensor shall not be bound by any
    additional provisions that may appear in any communication from
    You. This License may not be modified without the mutual written
    agreement of the Licensor and You.
 f. The rights granted under, and the subject matter referenced, in
    this License were drafted utilizing the terminology of the Berne
    Convention for the Protection of Literary and Artistic Works (as
    amended on September 28, 1979), the Rome Convention of 1961, the
    WIPO Copyright Treaty of 1996, the WIPO Performances and Phonograms
    Treaty of 1996 and the Universal Copyright Convention (as revised
    on July 24, 1971). These rights and subject matter take effect in
    the relevant jurisdiction in which the License terms are sought to
    be enforced according to the corresponding provisions of the
    implementation of those treaty provisions in the applicable
    national law. If the standard suite of rights granted under
    applicable copyright law includes additional rights not granted
    under this License, such additional rights are deemed to be
    included in the License; this License is not intended to restrict
    the license of any rights under applicable law.

Further context, best practice and guidance can be found in the UK Government
Licensing Framework section on The National Archives website. 

Creative Commons Attribution 4.0 International Public License

By exercising the Licensed Rights (defined below), You accept and agree
to be bound by the terms and conditions of this Creative Commons
Attribution 4.0 International Public License ("Public License"). To the
extent this Public License may be interpreted as a contract, You are
granted the Licensed Rights in consideration of Your acceptance of
these terms and conditions, and the Licensor grants You such rights in
consideration of benefits the Licensor receives from making the
Licensed Material available under these terms and conditions.


Section 1 -- Definitions.

  a. Adapted Material means material subject to Copyright and Similar
     Rights that is derived from or based upon the Licensed Material
     and in which the Licensed Material is translated, altered,
     arranged, transformed, or otherwise modified in a manner requiring
     permission under the Copyright and Similar Rights held by the
     Licensor. For purposes of this Public License, where the Licensed
     Material is a musical work, performance, or sound recording,
     Adapted Material is always produced where the Licensed Material is
     synched in timed relation with a moving image.

  b. Adapter's License means the license You apply to Your Copyright
     and Similar Rights in Your contributions to Adapted Material in
     accordance with the terms and conditions of this Public License.

  c. Copyright and Similar Rights means copyright and/or similar rights
     closely related to copyright including, without limitation,
     performance, broadcast, sound recording, and Sui Generis Database
     Rights, without regard to how the rights are labeled or
     categorized. For purposes of this Public License, the rights
     specified in Section 2(b)(1)-(2) are not Copyright and Similar
     Rights.

  d. Effective Technological Measures means those measures that, in the
     absence of proper authority, may not be circumvented under laws
     fulfilling obligations under Article 11 of the WIPO Copyright
     Treaty adopted on December 20, 1996, and/or similar international
     agreements.

  e. Exceptions and Limitations means fair use, fair dealing, and/or
     any other exception or limitation to Copyright and Similar Rights
     that applies to Your use of the Licensed Material.

  f. Licensed Material means the artistic or literary work, database,
     or other material to which the Licensor applied this Public
     License.

  g. Licensed Rights means the rights granted to You subject to the
     terms and conditions of this Public License, which are limited to
     all Copyright and Similar Rights that apply to Your use of the
     Licensed Material and that the Licensor has authority to license.

  h. Licensor means the individual(s) or entity(ies) granting rights
     under this Public License.

  i. Share means to provide material to the public by any means or
     process that requires permission under the Licensed Rights, such
     as reproduction, public display, public performance, distribution,
     dissemination, communication, or importation, and to make material
     available to the public including in ways that members of the
     public may access the material from a place and at a time
     individually chosen by them.

  j. Sui Generis Database Rights means rights other than copyright
     resulting from Directive 96/9/EC of the European Parliament and of
     the Council of 11 March 1996 on the legal protection of databases,
     as amended and/or succeeded, as well as other essentially
     equivalent rights anywhere in the world.

  k. You means the individual or entity exercising the Licensed Rights
     under this Public License. Your has a corresponding meaning.


Section 2 -- Scope.

  a. License grant.

       1. Subject to the terms and conditions of this Public License,
          the Licensor hereby grants You a worldwide, royalty-free,
          non-sublicensable, non-exclusive, irrevocable license to
          exercise the Licensed Rights in the Licensed Material to:

            a. reproduce and Share the Licensed Material, in whole or
               in part; and

            b. produce, reproduce, and Share Adapted Material.

       2. Exceptions and Limitations. For the avoidance of doubt, where
          Exceptions and Limitations apply to Your use, this Public
          License does not apply, and You do not need to comply with
          its terms and conditions.

       3. Term. The term of this Public License is specified in Section
          6(a).

       4. Media and formats; technical modifications allowed. The
          Licensor authorizes You to exercise the Licensed Rights in
          all media and formats whether now known or hereafter created,
          and to make technical modifications necessary to do so. The
          Licensor waives and/or agrees not to assert any right or
          authority to forbid You from making technical modifications
          necessary to exercise the Licensed Rights, including
          technical modifications necessary to circumvent Effective
          Technological Measures. For purposes of this Public License,
          simply making modifications authorized by this Section 2(a)
          (4) never produces Adapted Material.

       5. Downstream recipients.

            a. Offer from the Licensor -- Licensed Material. Every
               recipient of the Licensed Material automatically
               receives an offer from the Licensor to exercise the
               Licensed Rights under the terms and conditions of this
               Public License.

            b. No downstream restrictions. You may not offer or impose
               any additional or different terms or conditions on, or
               apply any Effective Technological Measures to, the
               Licensed Material if doing so restricts exercise of the
               Licensed Rights by any recipient of the Licensed
               Material.

       6. No endorsement. Nothing in this Public License constitutes or
          may be construed as permission to assert or imply that You
          are, or that Your use of the Licensed Material is, connected
          with, or sponsored, endorsed, or granted official status by,
          the Licensor or others designated to receive attribution as
          provided in Section 3(a)(1)(A)(i).

  b. Other rights.

       1. Moral rights, such as the right of integrity, are not
          licensed under this Public License, nor are publicity,
          privacy, and/or other similar personality rights; however, to
          the extent possible, the Licensor waives and/or agrees not to
          assert any such rights held by the Licensor to the limited
          extent necessary to allow You to exercise the Licensed
          Rights, but not otherwise.

       2. Patent and trademark rights are not licensed under this
          Public License.

       3. To the extent possible, the Licensor waives any right to
          collect royalties from You for the exercise of the Licensed
          Rights, whether directly or through a collecting society
          under any voluntary or waivable statutory or compulsory
          licensing scheme. In all other cases the Licensor expressly
          reserves any right to collect such royalties.


Section 3 -- License Conditions.

Your exercise of the Licensed Rights is expressly made subject to the
following conditions.

  a. Attribution.

       1. If You Share the Licensed Material (including in modified
          form), You must:

            a. retain the following if it is supplied by the Licensor
               with the Licensed Material:

                 i. identification of the creator(s) of the Licensed
                    Material and any others designated to receive
                    attribution, in any reasonable manner requested by
                    the Licensor (including by pseudonym if
                    designated);

                ii. a copyright notice;

               iii. a notice that refers to this Public License;

                iv. a notice that refers to the disclaimer of
                    warranties;

                 v. a URI or hyperlink to the Licensed Material to the
                    extent reasonably practicable;

            b. indicate if You modified the Licensed Material and
               retain an indication of any previous modifications; and

            c. indicate the Licensed Material is licensed under this
               Public License, and include the text of, or the URI or
               hyperlink to, this Public License.

       2. You may satisfy the conditions in Section 3(a)(1) in any
          reasonable manner based on the medium, means, and context in
          which You Share the Licensed Material. For example, it may be
          reasonable to satisfy the conditions by providing a URI or
          hyperlink to a resource that includes the required
          information.

       3. If requested by the Licensor, You must remove any of the
          information required by Section 3(a)(1)(A) to the extent
          reasonably practicable.

       4. If You Share Adapted Material You produce, the Adapter's
          License You apply must not prevent recipients of the Adapted
          Material from complying with this Public License.


Section 4 -- Sui Generis Database Rights.

Where the Licensed Rights include Sui Generis Database Rights that
apply to Your use of the Licensed Material:

  a. for the avoidance of doubt, Section 2(a)(1) grants You the right
     to extract, reuse, reproduce, and Share all or a substantial
     portion of the contents of the database;

  b. if You include all or a substantial portion of the database
     contents in a database in which You have Sui Generis Database
     Rights, then the database in which You have Sui Generis Database
     Rights (but not its individual contents) is Adapted Material; and

  c. You must comply with the conditions in Section 3(a) if You Share
     all or a substantial portion of the contents of the database.

For the avoidance of doubt, this Section 4 supplements and does not
replace Your obligations under this Public License where the Licensed
Rights include other Copyright and Similar Rights.


Section 5 -- Disclaimer of Warranties and Limitation of Liability.

  a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE
     EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS
     AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF
     ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,
     IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,
     WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR
     PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS,
     ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT
     KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT
     ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.

  b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE
     TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,
     NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,
     INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,
     COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR
     USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN
     ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR
     DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR
     IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.

  c. The disclaimer of warranties and limitation of liability provided
     above shall be interpreted in a manner that, to the extent
     possible, most closely approximates an absolute disclaimer and
     waiver of all liability.


Section 6 -- Term and Termination.

  a. This Public License applies for the term of the Copyright and
     Similar Rights licensed here. However, if You fail to comply with
     this Public License, then Your rights under this Public License
     terminate automatically.

  b. Where Your right to use the Licensed Material has terminated under
     Section 6(a), it reinstates:

       1. automatically as of the date the violation is cured, provided
          it is cured within 30 days of Your discovery of the
          violation; or

       2. upon express reinstatement by the Licensor.

     For the avoidance of doubt, this Section 6(b) does not affect any
     right the Licensor may have to seek remedies for Your violations
     of this Public License.

  c. For the avoidance of doubt, the Licensor may also offer the
     Licensed Material under separate terms or conditions or stop
     distributing the Licensed Material at any time; however, doing so
     will not terminate this Public License.

  d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
     License.


Section 7 -- Other Terms and Conditions.

  a. The Licensor shall not be bound by any additional or different
     terms or conditions communicated by You unless expressly agreed.

  b. Any arrangements, understandings, or agreements regarding the
     Licensed Material not stated herein are separate from and
     independent of the terms and conditions of this Public License.


Section 8 -- Interpretation.

  a. For the avoidance of doubt, this Public License does not, and
     shall not be interpreted to, reduce, limit, restrict, or impose
     conditions on any use of the Licensed Material that could lawfully
     be made without permission under this Public License.

  b. To the extent possible, if any provision of this Public License is
     deemed unenforceable, it shall be automatically reformed to the
     minimum extent necessary to make it enforceable. If the provision
     cannot be reformed, it shall be severed from this Public License
     without affecting the enforceability of the remaining terms and
     conditions.

  c. No term or condition of this Public License will be waived and no
     failure to comply consented to unless expressly agreed to by the
     Licensor.

  d. Nothing in this Public License constitutes or may be interpreted
     as a limitation upon, or waiver of, any privileges and immunities
     that apply to the Licensor or You, including from the legal
     processes of any jurisdiction or authority. 

To the extent possible under law, the author(s) have dedicated all copyright
and related and neighboring rights to this software to the public domain
worldwide. This software is distributed without any warranty.

You should have received a copy of the CC0 Public Domain Dedication along with
this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.