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

Ex Output:
against


Ex Input:
Topic: Abortion
 Argument: If a fetus was defined as a person, the legal shifts would be too dramatic.

Ex Output:
in favor


Ex Input:
Topic: UN Security Council veto
 Argument: The UN veto fosters a system of checks and balances.

Ex Output:

in favor