Given the Target and Argument texts detect the stance that the argument has towards the topic. There are three types of stances "in favor", "against", and "neutral". 

[EX Q]: Topic: Vegetarianism
 Argument: Offering rights to animals based on evolution is a slippery slope.
[EX A]: against

[EX Q]: Topic: War on Drugs
 Argument: Costs of Drug War are greater than costs of legalization.
[EX A]: against

[EX Q]: Topic: Polygamy
 Argument: Polygamy reduces the impulse to adultery and resulting divorces.
[EX A]:
in favor