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 packs three-times the energy as corn ethanol.
[EX A]: in favor

[EX Q]: Topic: Assault weapons ban in the United States
Argument: There are adequate alternatives to assault weapons for self-defense.
[EX A]: in favor

[EX Q]: Topic: Merit pay for teachers
Argument: Merit pay for teachers is tied to unreliable standardized tests.
[EX A]:
against