<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://forum.videohelp.com/threads/316249-NTSC-video-with-a-film-like-PAL-to-NTSC-conversion-type-of-look-that-shouldn-t?p=1957226&viewfull=1>