<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.firebox.com/Kandela-Magic-Candle/p2778?aff=512&awc=550_1284643692_c057d9fa4a63f6ad9cb1f630b3c7a1b2&via=ser>