<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.radiowebitalia.it/?option=com_k2&view=item&id=74642:dolcenera-%E2%80%9Cci-vediamo-a-casa%E2%80%9D&Itemid=98>