<http://schema.org/query-input>
"required name=search_keywords"^^<http://www.w3.org/2001/XMLSchema#string>
<http://ejaba.net/2841/%D9%81%D8%AD%D8%B5-%D8%A7%D9%84%D8%AD%D9%85%D9%84-%D8%A8%D8%A7%D9%84%D9%83%D9%84%D9%88%D8%B1>