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<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema targetNamespace="http://www.example.eclipse.org/Library"
xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore"
xmlns:lib="http://www.example.eclipse.org/Library"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:complexType name="Book">
<xsd:sequence>
<xsd:element name="title" type="xsd:string"/>
<xsd:element name="pages" type="xsd:int"/>
<xsd:element name="category" type="lib:BookCategory"/>
<xsd:element name="author" type="xsd:anyURI"
ecore:reference="lib:Writer" ecore:opposite="books"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="Writer">
<xsd:sequence>
<xsd:element name="name" type="xsd:string"/>
<xsd:element maxOccurs="unbounded" minOccurs="0" name="books"
type="xsd:anyURI" ecore:reference="lib:Book" ecore:opposite="author"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="Library">
<xsd:sequence>
<xsd:element name="name" type="xsd:string"/>
<xsd:element maxOccurs="unbounded" minOccurs="0"
name="writers" type="lib:Writer"/>
<xsd:element maxOccurs="unbounded" minOccurs="0"
name="books" type="lib:Book"/>
</xsd:sequence>
</xsd:complexType>
<xsd:simpleType name="BookCategory">
<xsd:restriction base="xsd:NCName">
<xsd:enumeration value="Mystery"/>
<xsd:enumeration value="ScienceFiction"/>
<xsd:enumeration value="Biography"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:schema>
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