<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%2F67a85993e2e0%2Fillinois-36x12-canvas-print%3Finternal_campaign%3Dchannel>