<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.burton.com/default/mens-shirts-sweaters?prefn1=variationSize&prefn2=filterColor&prefv3=false&prefv1=XL&prefv2=White&prefn3=instock&collectionID=mens-shirts-sweaters>