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: Google decision to stop censoring results in China
 Argument: Google's decision in China was mostly ethics, not business.
in favor

Topic: Is Wikipedia valuable?
 Argument: Wikipedia is losing good editors at an alarming rate.
neutral

Topic: Kyoto Protocol
 Argument: Humans are not causing global warming so Kyoto can't solve it.

against