<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.wermuth.de/Kuehlschraenke-ab-85cm/37964140_Oranier-RKS-1-2812-14-Schwarz-A-4-Sterne-Gefrierfach.html>