<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%2Fb0d8ef1339%2F18kt-white-gold-sterling-silver-earrings-six-point-star>