<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/converse-shoes-women-s-composite-toe-eh-trailhiker-shoes-c890-73276.html>