The following is supported: <literal>prefix</literal> for
<link linkend="PQF">Prefix Query Notation</link> (Type-1 Query);
<literal>ccl</literal> for CCL search (Type-2
The following is supported: <literal>prefix</literal> for
<link linkend="PQF">Prefix Query Notation</link> (Type-1 Query);
<literal>ccl</literal> for CCL search (Type-2