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: Reforestation as a solution to global warming
 Argument: Enough land for reforestation to be a viable solution.
[EX A]: in favor

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

[EX Q]: Topic: Obama, meeting with hostile foreign leaders without preconditions
 Argument: Iranian leaders are evil; wrong to meet with them.
[EX A]:
against