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: 16 year olds should be able to vote at presidental elections.
perspective: This would complicate elections.

Answer: undermine

Question: claim: The republican party has lost its way.
perspective: The Republican Party has been hijacked by the Tea Partiers who simply don't have a coherent message or ideology

Answer: support

Question: claim: Britain should become a republic.
perspective: Monarchy is just childish.

Answer:
support