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 be 0 emissions.
[EX A]: in favor

[EX Q]: Topic: Cluster bomb ban
 Argument: Cluster bombs are usually used in uninhabited areas.
[EX A]: against

[EX Q]: Topic: European Union Expansion
 Argument: Drugs will flow more easily due to entry of new countries into the EU.
[EX A]:
against