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 Input:
Topic: Abortion
 Argument: The fetus causes physical pain; the woman has a right to self-defense.

Ex Output:
in favor


Ex Input:
Topic: Constitutionality of US health insurance mandates
 Argument: Congress can't regulate behavior indirectly impacting commerce.

Ex Output:
against


Ex Input:
Topic: Nuclear energy
 Argument: Uranium is abundant and will last for hundreds of years.

Ex Output:

in favor