<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://tecnogers.altervista.org/forum/galoppo/23590-tqq-napoli-trotto-martedi-26-01-2016-partenza-ore-18-30-tris-quarte-quinte.html>