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". 

Q: Topic: Legality of coca production and consumption
 Argument: Tradition of coca consumption is a poor argument.

A: against
****
Q: Topic: Natural gas
 Argument: Natural gas vehicles reduce emissions, fight global warming.

A: in favor
****
Q: Topic: Geoengineering
 Argument: Many green orgs and scientists support geoengineering option.

A:
in favor
****