<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.burton.com/default/kilo-backpack/F15-136491.html?dwvar_F15-136491_variationColor=13649100405&cgid=bags-luggage-backpacks-shoulder-bags>