<http://schema.org/description>
"NASA is looking to relax some limits placed on planets being considered as hospitable to life."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Science_News/2014/06/10/NASA-scientist-expands-list-of-habitability-possibilities-for-exoplanets/8021402411141/>