<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ticketmonster.com/buy-Elche-at-Real-Madrid-tickets-at-Estadio-Santiago-Bernabeu-Madrid-Comunidad-de-Madrid-02-23-2014/28174>