<http://schema.org/name>
"Vimeo announces content ratings: Videos will now be marked for All Audiences, Mature, or Not Yet Rated"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/media/2013/01/30/vimeo-announces-content-ratings-videos-will-now-be-marked-for-all-audiences-mature-or-not-yet-rated/>