<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ticketmonster.com/buy-Cirque-Du-Soleil-Amaluna-tickets-at-Grand-Chapiteau-at-ATT-Park-San-Francisco-CA-12-29-2013/14525>