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: There is a world Water crisis.
 perspective: In 2020, an additional 17% of fresh water will be required to satisfy human needs

Answer: support


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: History as a subject in school is needed.
 perspective: To understand how things came to be, school children should be taught historical facts and figures. 

Answer:
support