<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.cyberport.de/hp-q8691a-advanced-fotopapier-glaenzend-25-blatt-10x15cm-250-g-qm-6J01-16U_621.html>