<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.wermuth.de/Waschmaschinen-Frontlader/37710058_Siemens-WM-14-Q-342-EEK-A-7kg-1400-Touren.html>