<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.firebox.com/Breville-Radio-Toaster/p3141?aff=512&awc=550_1298292850_70cf2411f26e0d1aad1f661b6ba60a24>