<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.burton.com/default/youth-apparel-short-sleeve?prefn1=variationSize&prefn2=instock&srule=price-desc&prefv1=L&prefv2=true&collectionID=youth-apparel-tees>