true

<?xml version="1.0" encoding="UTF-8"?>
<RuleSet name="Example_true"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:noNamespaceSchemaLocation=
"http://www.curamsoftware.com/CreoleRulesSchema.xsd">
  <Class name="TrueExampleRuleClass">

    <Attribute name="isCuramExpertRulesFantastic">
      <type>
        <javaclass name="Boolean"/>
      </type>
      <derivation>
        <true/>
      </derivation>
    </Attribute>

    <Attribute name="didCookbookWinPulitzerPrize">
      <type>
        <javaclass name="Boolean"/>
      </type>
      <derivation>
        <not>
          <true/>
        </not>
      </derivation>
    </Attribute>

  </Class>

</RuleSet>