<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.peta.org/?ReturnUrl=%2Ftv%2Fvideos%2Fvegetarianism-birds%2Fdefault.aspx%3FPageIndex-1264194887%3D2%26PageIndex--1616653821%3D2>