<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ezvacuum.com/vacuum-cleaner-brushrolls-c-7/dyson-vacuum-cleaner-brushrolls/dyson-dc07dc14-roller-brush-90417401-p-1644.html>