About: http://webisa.webdatacommons.org/135224688

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	When the first bacteria began to harness light energy some 3.4 billion years ago, Earth's atmosphere was mainly composed of nitrogen and CO2.
http://www.w3.org/ns/prov#wasQuotedFrom	newscientist.com