<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.abt.com/product/80876/Maytag-5.8-Cu.-Ft.-Freestanding-Stainless-Steel-Gas-Range-With-Griddle-MGR8800DS.html>