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.

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

A: undermine
****
Q: claim: Gay couples should be allowed to marry.
 perspective: Legalizing gay marriage often leads to an end to domestic partnership benefits for gay and straight couples, which disadvantages couples who choose not to get married. 

A: undermine
****
Q: claim: Junk Food Should Be Banned.
 perspective: Schools are the best place to create lasting lifestyle changes.

A:
support
****