<triple>
  <boolean>
    <value>and</value>
  </boolean>
  <leftOperand>
    <triple>
      <boolean>
        <value>or</value>
      </boolean>
      <leftOperand>
        <triple>
          <boolean>
            <value>or</value>
          </boolean>
          <leftOperand>
            <searchClause>
              <index>cql.serverChoice</index>
              <relation>
                <value>=</value>
              </relation>
              <term>cat</term>
            </searchClause>
          </leftOperand>
          <rightOperand>
            <searchClause>
              <index>cql.serverChoice</index>
              <relation>
                <value>=</value>
              </relation>
              <term>dog</term>
            </searchClause>
          </rightOperand>
        </triple>
      </leftOperand>
      <rightOperand>
        <searchClause>
          <index>cql.serverChoice</index>
          <relation>
            <value>=</value>
          </relation>
          <term>horse</term>
        </searchClause>
      </rightOperand>
    </triple>
  </leftOperand>
  <rightOperand>
    <searchClause>
      <index>cql.serverChoice</index>
      <relation>
        <value>=</value>
      </relation>
      <term>frog</term>
    </searchClause>
  </rightOperand>
</triple>
