<http://schema.org/about>
"No, Abraham Lincoln did not invent Facebook. A viral story that the 16th president filed a patent for a paper version of the social network is revealed as a hoa"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/lifestyle/arts-culture/blogs/no-abraham-lincoln-did-not-invent-facebook>