<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=%2Fforum%2Fblogs%2F572a5e6df%2Fmfiggie2-just-won-50-tanga-cash-you-can-too>