<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.4wd.com/Exterior-Parts-Car-Care/Sherpa-Roof-Rack-System.aspx?t_c=3&t_s=82&t_pt=3426&t_pn=RUG11703.01>