<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%2F93740cf3ae8b%2Fanimal-face-toe-socks-6-pack%3Finternal_campaign%3Dchannel>