<http://schema.org/description>
"As we wrote in our feature last month, TripAdvisor and Facebook have been enjoying a pretty cosy relationship these past few years, and this relationship just got a little bit more ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/insider/2012/04/11/tripadvisor-deepens-facebook-integration-with-friend-of-a-friend-recommendations/>