<http://schema.org/description>
"Earth waved and smiled for the Cassini space probe and got a great picture in return."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Science_News/Blog/2013/07/23/Earth-seen-from-Saturn-Mercury-PHOTOS/2021374590012/?spt=hts&or=5>