<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://workingperson.com/workwear-1/shirts/international-farmall-shirts/international-harvester-mens-d10511-hrd-heather-red-ih-distressed-short-sleeve-t-shirt.html>