<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%2F27014c4d4e%2Fcolumbia-silverton-fashion-sunglasses-brown%3Finternal_campaign%3Dchannel>