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.

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

claim: The United States should maintain its embargo against Cuba.
 perspective: Cuba has not demonstrated a willingness to negotiate in good faith with the United States. 
support

claim: The right to trial can be limited by jury in some criminal cases.
 perspective: Trial by jury is a fundamental right and should never be abridged.

undermine