<http://schema.org/description>
"To celebrate planet Earth and Earth Day, NASA has called on citizens of Earth to take a #GlobalSelfie."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Science_News/2014/04/22/NASA-calls-on-Earthlings-to-celebrate-Earth-Day-with-GlobalSelfie/7291398184369/?spt=tsb&or=2>