<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.abt.com/product/89133/JL-Audio-Chevrolet-Silverado-And-GMC-Sierra-Subwoofer-Stealthbox-SBGMSLVD10TW1GA.html>