<http://schema.org/query-input>
"required name=search_keywords"^^<http://www.w3.org/2001/XMLSchema#string>
<http://ejaba.net/184451/%D9%85%D8%A7%D9%87%D9%88-%D8%B9%D9%84%D9%85-%D8%A7%D9%84%D8%A8%D8%AB%D9%88%D9%84%D9%88%D8%AC%D9%8A>