Assertion: doomsday clock | /r/HasProperty | symbolic representation
Facets:
Source sentences:
text: The Doomsday Clock is a symbolic representation of how close humanity has come to dying in nuclear warfare.
text: The Doomsday Clock is a symbolic representation of how close humanity is to perishing by its own hands.
text: Doomsday Clock 2020: The Doomsday Clock is a symbolic representation of how close humanity is to pe