<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%2F2009%2F05%2F27%2FWin-It-Wednesday-The-Engine-2-Diet.aspx%3FPageIndex%3D3>