<triple>
  <boolean>
    <value>and</value>
  </boolean>
  <leftOperand>
    <searchClause>
      <prefixes>
        <prefix>
          <identifier>info:srw/cql-context-set/1/dc-v1.1</identifier>
        </prefix>
      </prefixes>
      <index>title</index>
      <relation>
        <value>=</value>
      </relation>
      <term>fish</term>
    </searchClause>
  </leftOperand>
  <rightOperand>
    <searchClause>
      <prefixes>
        <prefix>
          <identifier>http://srw.cheshire3.org/contextSets/ccg/1.1/</identifier>
        </prefix>
      </prefixes>
      <index>force</index>
      <relation>
        <value>=</value>
      </relation>
      <term>3</term>
    </searchClause>
  </rightOperand>
</triple>
