<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.burton.com/mens-stay-warm-outerwear/stay-warm-mens,default,sc.html?prefn1=filterColor&prefv1=Pattern%7CYellow&srule=filterWaterproofing>