<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Health_News/2011/09/15/Cause-not-determined-in-Wis-E-coli-case/UPI-25091316132697/?rel=95701339176820>