<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://forum.videohelp.com/threads/363006-I-want-to-edit-a-video-but-I-can-t-find-a-way-to-get-MPC-HC-(CCCP)-quality>