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: NATO expansion
 Argument: The expense of NATO expansion is marginal when compared to the defence budgets of the major NATO States.

Ex Output:
in favor


Ex Input:
Topic: Pornography
 Argument: Pornography is an expression falling under freedom of speech.

Ex Output:
in favor


Ex Input:
Topic: Carbon emissions trading
 Argument: US cap-and-trade in sulfur dioxidew was succesful.

Ex Output:

in favor