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: Education vouchers
 Argument: Education vouchers improve minority academic achievement.

Ex Output:
in favor


Ex Input:
Topic: Health insurance cooperatives
 Argument: Advocates of co-ops are really aiming for socialized medicine.

Ex Output:

against