<http://schema.org/description>
"Software engineer\u00A0Eric Sun has revealed the evolution of Facebook's\u00A0Entity Graph, a complicated data set which maps the social network's 100+ billion connections between people, places ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/facebook/2013/06/06/the-evolution-of-facebooks-entity-graph-the-structured-connections-behind-graph-search/?fromcat=all>