<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%2F3d45016e93%2Flight-tungsten-rose-gold-4mm-ring%3Finternal_campaign%3Dchannel>