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: Prostitution Should Be Legal.
 perspective: The law should not condone illicit behaviour

Answer: undermine


Question: claim: Handguns must be banned in Washington D.C.
 perspective: The individual right to bear arms should be restricted in DC.

Answer: support


Question: claim: The US and its allies were justified in taking military action against Iraq following Iraq’s invasion of Kuwait.
 perspective: The US did not have legitimate authority

Answer:
undermine