<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theclassyhome.com/Product/ATH5123-58/Athena+Beige+Mocha+Olive+Black+Slate+Wool+Area+Rug+-+5'x8'>