<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.abt.com/product/40544/KitchenAid-Architect-Series-II-Stainless-Steel-Bottom-Freezer-Refrigerator-KBRS22KVSS.html>