<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://vilne.org.ua/2015/08/%d1%81%d0%bf%d0%be%d1%87%d0%b8%d0%bb%d0%b0-%d0%bd%d0%b0-%d0%bd%d0%b5%d0%b1%d0%b5%d1%81%d0%b0%d1%85/>