<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://workingperson.com/workwear-1/headwear/winter-face-masks/cold-avenger-masks-pro-classic-fleece-black-high-performance-mask-cac-reg-blk.html>