<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.dimmicosacerchi.it/forum/il-mio-referral-vf151/8459-adpaid-guadagna-con-i-sondaggi-e-con-le-email-36.html>