<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.dzgsm.com/vb/threads/4993-%D9%8E%D9%8F%D9%92-%D9%8E%D9%92%D9%8E%D9%92%D9%8F%D9%8F%D9%8E/>