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: Three Gorges Dam
 Argument: The TGD is a hydroelectric, renewable-energy project.
[EX A]: neutral

[EX Q]: Topic: Libertarianism
 Argument: Libertarians would decriminalize many crimes, so reduce crime.
[EX A]: in favor

[EX Q]: Topic: Bullfighting
 Argument: Bullfighters and others are regularly gored.
[EX A]:
against