<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.burton.com/total-comfort-snowboard-boots/total-comfort,default,sc.html?collectionID=total-comfort&prefn1=variationSize&prefv1=9.5%7C8.5>