<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.4wheelparts.com/Wheels/Wheels.aspx?t_c=11&t_s=535&t_pt=101508&Manufacturer_PQ=Pro+Comp+Wheels&Style_PQ=Rock+Crawler+Series+52&Wheel+Size_PQ=15x12+>