About: http://webisa.webdatacommons.org/418074074

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As far as we know, water is a necessity of life, and its presence on Mars helps shore up the position of scientists who suspect that life once existed on the planet.
http://www.w3.org/ns/prov#wasQuotedFrom	psu.edu