<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.4wd.com/Drivetrain-Differential/Steering-Knuckle-Seal-Kit.aspx?t_c=12&t_s=237&t_pt=101152&t_pn=OAI18026.08>