About: http://webisa.webdatacommons.org/87770910

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	Water, oxygen, nitrogen, and other materials with low boiling points are hard to come by in space, and will be necessary for further exploration.
http://www.w3.org/ns/prov#wasQuotedFrom	cd-disk.com