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: Geoengineering
 Argument: Many geoengineering solutions cut atmospheric greenhouse gases.
[EX A]: in favor

[EX Q]: Topic: New START Treaty
 Argument: New START Treaty gives more to Russia than US.
[EX A]: against

[EX Q]: Topic: US Renewable Electricity Standard
 Argument: A national renewable energy standard will increase electricity costs.
[EX A]:
against