<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://channelworld.cz/podpora/zyxel-a-ed-system-czech-poradaji-bezplatne-workshopy-o-wi-fi-a-zabezpeceni-siti-6749>