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". 

Example Input: Topic: Reforestation as a solution to global warming
 Argument: Reforestation can result in release of greenhouse gas Methane.
Example Output: against

Example Input: Topic: DC handgun ban
 Argument: A handgun is uniquely valuable in self defense in one's home.
Example Output: against

Example Input: Topic: Legality of coca production and consumption
 Argument: Coca can be used as a local anesthetic.
Example Output:
in favor