<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://workingperson.com/footwear-1/womens-steel-toe-shoes/womens-steel-toe-tennis-shoes/reebok-shoes-womens-black-rb449-composite-toe-athletic-shoes.html>