<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.dimmicosacerchi.it/forum/cestino-vf21/come-accedere-toluna-con-i-vecchi-dati-di-ciao-survey-vt21928.html>