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: Lowering US drinking age from 21 to 18
 Argument: 21 drinking-age general lowers under-age drinking.
against

Topic: Trying 9/11 terror suspects in NYC courts
 Argument: Little difference between civilian courts and military tribunals.
neutral

Topic: Rebuilding New Orleans
 Argument: Louisiana politicians cannot be trusted with federal funding.

against