<http://schema.org/query-input>
"required name=search_keywords"^^<http://www.w3.org/2001/XMLSchema#string>
<http://ejaba.net/196949/%D9%85%D9%86-%D8%A7%D9%84%D9%85%D8%B9%D8%A7%D8%AC%D9%85-%D8%AA%D8%A7%D8%AC>