<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://faludig-ekszer.hu/index.php?page=shop.browse&category_id=5&option=com_virtuemart&Itemid=2&lang=en&vmcchk=1&Itemid=2>