<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://workingperson.com/footwear-1/socks/merino-socks/wigwam-socks-women-s-merino-oatmeal-wool-knee-socks-f3045-121.html>