<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vistax64.com/live-photo-gallery/148318-how-rotate-less-than-90-degrees.html?s=8e1e3b58477a75b949e1726ee9200799>