<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.4wd.com/Jeep-Hitches-Hitch-Parts/Jeep-Receiver-Hitches.aspx?t_c=67&t_s=59&t_pt=3390>