About: http://webisa.webdatacommons.org/24265259

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	Eventually, hydrogen, carbon, nitrogen, chlorine and other useful agricultural and industrial chemicals could be imported far more cheaply from the asteroids or from the moons of Mars than from the Earth's surface.
http://www.w3.org/ns/prov#wasQuotedFrom	freerepublic.com