<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.wermuth.de/Kochfelder/46455938_Siemens-EX-801-LYC-1-E-Autark-80-cm-Induktions-Kochstelle.html>