Assertion: cyanobacteria | /r/HasProperty | second organisms
Facets:
value: in existence
type: OTHER
Source sentences:
text: They are thought to be the second organisms in existence, because they give off oxygen as a byproduct.
text: They are thought to be the second organisms in existence, because they give off oxygen as a byproduct.
text: They are thought to be the second organisms in existence, because they give off oxygen as a byproduct.