<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://workingperson.com/workwear-1/work-pants/511-tactical-pants/5-11-tactical-pants-men-s-wool-blend-unhemmed-pants-44061-890-6533.html>