instruction:
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.
question:
claim: All nations have a right to nuclear weapons.
 perspective: The pursuit of nuclear defence (respectively the possession of nuclear weapons) by more countries is a guarantee for peace. 
answer:
support


question:
claim: The world should go vegan.
 perspective: Vegetarianism makes no difference in longevity
answer:
undermine


question:
claim: All nations have a right to nuclear weapons.
 perspective: Irrational leaders make the possession of nuclear weapons dangerous
answer:

undermine