<http://schema.org/query-input>
"required name=search_keywords"^^<http://www.w3.org/2001/XMLSchema#string>
<http://ejaba.net/269/%D9%85%D9%86-%D9%87%D9%88-%D8%A8%D8%A7%D9%86%D9%8A-%D9%82%D8%A8%D8%A9-%D8%A7%D9%84%D8%B5%D8%AE%D8%B1-%D8%A9-%D9%81%D9%8A-%D8%A7%D9%84%D9%82%D8%AF%D8%B3>