<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Top_News/US/2013/02/17/GOP-No-tax-hikes-for-spending-cuts/UPI-76741361126181/?spt=hs&or=tn>