<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.burton.com/default/womens-shirts-sweaters?prefn1=variationSize&prefn2=filterColor&prefv3=true&prefv1=S%5CM&prefv2=Purple&prefn3=instock&collectionID=womens-shirts-sweaters>