<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.burton.com/default/wheelie-double-deck-travel-bag/F15-116071.html?dwvar_F15-116071_variationColor=11607101972&cgid=bags-luggage-travel-bags-luggage>