<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.burton.com/default/mens-snowboard-pants?prefn1=filterColor&prefn2=variationSize&srule=price-asc&prefv1=Gray&prefv2=S&collectionID=mens-pants>