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". 

Topic: AIG bonuses
 Argument: Government should have regulated bonuses, not tax them.
against

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

Topic: Funding transparency for TV issue ads in elections
 Argument: Foreign funding in US election sis prohibited under current law.

neutral