<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.4wheelparts.com/Brakes-Steering/Heavy-Duty-Power-Steering-Shaft.aspx?t_c=65&t_s=430&t_pt=8223&t_pn=OAI18024.02>