<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.opena.tv/openatv-4-0-beta-test-rueckmeldungen/4798-xpeed-lx2-box-portal-emc-aufnahmeuebersicht-2.html>