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: Osama Bin Laden Sea Burial
 Argument: No alternative to sea burial was available.
[EX A]: in favor

[EX Q]: Topic: Hydroelectric dams
 Argument: Dams eliminate forests that absorb CO2 from the atmosphere.
[EX A]: against

[EX Q]: Topic: Trying 9/11 terror suspects in NYC courts
 Argument: Trying terrorists in NY requires costly security.
[EX A]:
against