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: Bombing Hiroshima and Nagasaki
 Argument: Hiroshima was a strategic military headquarters and target.
[EX A]: in favor

[EX Q]: Topic: European Union Expansion
 Argument: EU enlargement will improve foreign direct investment into eastern Europe.
[EX A]: in favor

[EX Q]: Topic: Libertarianism
 Argument: Libertarianism does not allow for essential public services (i.e. roads).
[EX A]:
against