In this task you will be given a claim and a perspective. You should determine whether that perspective supports or undermines the claim. If the perspective could possibly convince someone with different view, it is supporting, otherwise it is undermining.
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Question: claim: Eliminate All Nuclear Weapons.
 perspective: Disarmament would actually cause increased insecurity among nations, it is near impossible to guarantee that a nation has disarmed.

Answer: undermine


Question: claim: We should allow death penalty for the worst of the worst criminals.
 perspective: The death penalty has led to innocent people dying.

Answer: undermine


Question: claim: The People’s Republic of China should invade North Korea.
 perspective: To invade could trigger an Arms Race: the very thing everyone wants to avoid!

Answer:
undermine