<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.abt.com/product/39689/Panasonic-37-VIERA-S1-Series-Black-LCD-Flat-Panel-HDTV-TCL37S1.html?tab=1>