<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%2F9b076d0b7c%2Fcoach-fashion-sunglasses-black-tortoise%3Finternal_campaign%3Dchannel>