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". 

Topic: Mine Ban Treaty (Ottawa Treaty)
 Argument: Geneva Conventions regulates use of landmines; ban is excessive.
against

Topic: Solar energy
 Argument: Producing solar cells need not use fossil fuel energy.
in favor

Topic: Infant male circumcision
 Argument: Circumcision reduces risk of urinary tract infections.

in favor