Assertion: novichok nerve agent | /r/HasProperty | developed by the soviet union
Facets:
value: during the cold war
type: TEMPORAL
Source sentences:
text: They had been poisoned with a Novichok nerve agent developed by the Soviet Union during the Cold War.
text: Since the Novichok nerve agents were developed in the Soviet Union at the end of the Cold War, British Prime Minister Theresa May blamed Russia for the poisoning.