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: Cellulosic ethanol
 Argument: Cellulosic ethanol can generate good-paying jobs.
[EX A]: in favor

[EX Q]: Topic: Hydroelectric dams
 Argument: There are better ways to store water than dams.
[EX A]: against

[EX Q]: Topic: US debt ceiling deal
 Argument: Debt deal avoids a disastrous default.
[EX A]:
in favor