<http://schema.org/query-input>
"required name=search_terms"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.creta.gr/search.php?action=results&page=1&search_terms=%CE%A0%CE%95%CE%A4%CE%A1%CE%9F%CE%9A%CE%A4%CE%99%CE%A3%CE%A4%CE%91>