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<?xml version="1.0"?>
<!--
This input describes a house event that doesn't have Boolean constant.
This input is valid input for analysis without probability calculations.
However, if the state is not defined, it defaults to false.
-->
<opsa-mef>
<define-fault-tree name="TwoTrains">
<define-gate name="TopEvent">
<and>
<event name="TrainOne"/>
<event name="TrainTwo"/>
</and>
</define-gate>
<define-gate name="TrainOne">
<or>
<event name="ValveOne"/>
<event name="PumpOne"/>
</or>
</define-gate>
<define-gate name="TrainTwo">
<or>
<event name="ValveTwo"/>
<event name="PumpTwo"/>
</or>
</define-gate>
<define-house-event name="ValveOne"/> <!-- No expression. -->
<define-basic-event name="ValveTwo">
<float value="0.5"/>
</define-basic-event>
<define-basic-event name="PumpOne">
<float value="0.6"/>
</define-basic-event>
<define-basic-event name="PumpTwo">
<float value="0.7"/>
</define-basic-event>
</define-fault-tree>
</opsa-mef>
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