<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://eur.burton.com/default/mens-snowboard-boots?prefn1=filterColor&prefn2=variationSize&prefv1=Red&prefv2=13%7C12&collectionID=mens-boots>