<http://schema.org/description>
"Vimeo today announced an update to Vimeo On Demand that adds content ratings and speeds up the checkout process. Creators can now add content ratings to their Vimeo On Demand pages, ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/media/2013/12/11/vimeo-demand-gets-content-ratings-faster-checkout-option-save-billing-info/>