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: The US intervention in Libya, lacking congressional approval, was illegal.
 perspective: A long ruling and ruthless dictator was toppled.

Answer: undermine


Question: claim: The world should go vegan.
 perspective: There are ways other than giving up meat to help the environment.

Answer: undermine


Question: claim: It is sometimes right for the government to restrict freedom of speech.
 perspective: Freedom of expression is a right guaranteed to all, and reducing or eliminating those freedoms is never acceptable.

Answer:
undermine