<http://schema.org/keywords>
"Facebook"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/facebook/2013/04/15/ea-shuts-down-more-facebook-games-goodbye-the-sims-social-simcity-social-and-pet-society/?awesm=tnw.to_g0deg>