<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ticketmonster.com/buy-Northeast-Atlanta-Ballet-Coppelia-tickets-at-Gwinnett-Performing-Arts-Center-Duluth-GA-03-16-2014/435725>