<http://schema.org/topics>
"Entertainment,Facebook,harry potter,inception,Life as we Know It,Movies,news,Social Media,social networking,warner bros,we have to go deeper,web,web 2.0,Yogi Bear"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2011/03/28/warner-bros-more-titles-facebook-movie-rental/>