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 Q]: Topic: Prostitution
 Argument: Legalizing prostitution won't substantially reduce HIV/AIDS risks.
[EX A]: against

[EX Q]: Topic: Enhanced interrogation techniques
 Argument: Majority of Americans believe harsh interrogations justified.
[EX A]: in favor

[EX Q]: Topic: Driftnet ban
 Argument: There is a ban on the use of driftnets in international waters already.
[EX A]:
neutral