<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://eur.burton.com/default/mens-snowboard-pants?prefn1=instock&prefn2=filterColor&prefv3=M%7CXS%7CL&prefv1=true&prefv2=Green%7CPattern%7CWhite&prefn3=variationSize&collectionID=mens-pants>