<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.4wd.com/Jeep-Engine-Performance/Oxygen-Sensor.aspx?t_c=74&t_s=151&t_pt=101551&t_pn=OAI17222.11>