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