<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/blog/2013/03/06/Justin-Bieber-tweets-plans-to-stay-positive-amid-meltdown-rumors/2891362606517/?rel=4301364321423>