<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.wermuth.de/Buegeleisen/3482233_Siemens-TS-45350-Dampfstation-SL45-sensorIntelligence-Stiftung-Warentest-gut-12.2012.html>