<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%2Feef733128f%2Fsportcraft-2000-electronic-dartboard-and-cabinet-set-with-32-games>