<section id="querymodel-rpn">
<title>&acro.rpn; queries and semantics</title>
<para>
The <ulink url="&url.yaz.pqf;">&acro.pqf; grammar</ulink>
is documented in the &yaz; manual, and shall not be
repeated here. This textual &acro.pqf; representation
<section id="querymodel-rpn">
<title>&acro.rpn; queries and semantics</title>
<para>
The <ulink url="&url.yaz.pqf;">&acro.pqf; grammar</ulink>
is documented in the &yaz; manual, and shall not be
repeated here. This textual &acro.pqf; representation