<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.abt.com/product/62509/Danby-10-Cu-Ft-Black-And-Stainless-Steel-Top-Freezer-Refrigerator-DFF282SLDB.html>