<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Top_News/US/2013/06/15/Obama-Nothing-substitutes-for-the-presence-of-a-parent/UPI-78441371290400/?rel=1271371429725>