<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Top_News/US/2012/05/06/NYC-boy-12-killed-in-freak-gate-mishap/UPI-16561336362419/?spt=mps&or=3>