<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.wermuth.de/Stand-Kuehl-Gefrierkombinationen/39173154_Siemens-KG-36-NEI-45-EEK-A-No-Frost-Edelstahl-Extraklasse.html>