<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://eur.burton.com/boys-layering/boys-layering,default,sc.html?collectionID=boys-layering&prefn1=filterColor&prefv1=Black%7CBlue&prefn2=instock&prefv2=true>