Assertion: plutonium | /r/HasProperty | known to man
Facets:
value: extremely
type: DEGREE
Source sentences:
text: If the public perception really is that Pu is “the most toxic substance known to man” (arguable), then saying “
text: Plutonium is extremely well-known due to its use in atomic bombs and nuclear reactors.
text: I can see why you’d object to statements like “Plutonium is the most toxic substance known to man”, which happily ignores poisons (Arsenic?), venoms (Funnel-web spider?) or nerve agents (Sarin?); but