<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.travelyalla.com/%D9%83%D9%88%D8%B1%D8%A7%D9%84%20%D8%B3%D9%8A%20%D8%A7%D9%84%D8%B3%D8%AE%D9%86%D8%A9/3/1/1278>