<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.peta.org/?ReturnUrl=%2Fb%2Fthepetafiles%2Farchive%2F2010%2F05%2F14%2FWhos-Been-Shooting-Down-the-KFC-Double-Down.aspx>