<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%2F842f5c99f506%2Fgreen-bay-football-fan-knit-muffler%3Finternal_campaign%3Dchannel>