<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.burton.com/default/womens-gmp-snowboard-jackets-pants?prefn1=filterColor&srule=Product%20Name%20-%20Ascending&prefv1=Red%7CBlack>