<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theclassyhome.com/Product/R-191827-HDBD-FRM/Soho+Caramel+Latte+Solid+Wood+Twin+Headboard+w/Metal+Frame>