<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.dimmicosacerchi.it/forum/offerte-viaggi-e-telefonia-vf235/3372-telefonate-e-sms-gratis-davvero-si-puo-si-2.html>