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