<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.dimmicosacerchi.it/forum/cestino-vf21/19216-copie-de-il-giornalino-piu-portachiavi-fino-al-31-01-2011-a-21.html>