<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%2Fd2e18ef602%2F18kt-white-gold-sterling-silver-pendant-heart-shooting-star%3Finternal_campaign%3Dchannel>