<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%2F40d89be9f3%2Fluxury-hotel-4-piece-600-thread-count-100-cotton-sheet-set>