About: http://webisa.webdatacommons.org/198185991

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	Scientists think that photosynthetic microorganisms such as cyanobacteria produced the oxygen.
http://www.w3.org/ns/prov#wasQuotedFrom	indiana.edu