<http://schema.org/query-input>
"required name=search_keywords"^^<http://www.w3.org/2001/XMLSchema#string>
<http://ejaba.net/244560/%D8%B4%D8%AE%D8%B5%D9%8A%D8%A9-%D8%B9%D8%A7%D9%84%D9%85%D9%8A%D8%A9-%D9%85%D9%867>