<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://workingperson.com/footwear-1/mens-steel-toe-boots/6-inch-steel-toe-boots/avenger-men-s-brown-steel-toe-6-inch-work-boot-a7210-147426.html>