<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.tanga.com/users/new?return_path=%2Fdeals%2Fcd6772fa1f%2Fsandisk-16gb-microsdhc-memory-card-class-4-with-sd-adapter-sdsdqm-016g-b35a>