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: Gay marriage should be legal.
 perspective: The institution of marriage cannot be harmed by giving more people the freedom to marry and it may become the case that heterosexual marriage is less stable than same-sex marriage. 

Answer: support


Question: claim: Eliminate All Nuclear Weapons.
 perspective: Proliferation of nuclear weapons increases the chances of nuclear accidents

Answer: support


Question: claim: Animal testing should be banned.
 perspective: There are no satisfactory alternatives to animal research

Answer:
undermine