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 Input:
Topic: Polygamy
 Argument: Polygamy undermines the traditional institution of marriage.

Ex Output:
against


Ex Input:
Topic: Natural gas vehicles
 Argument: Odorless natural gas can escape detection risking fire/explosion.

Ex Output:
against


Ex Input:
Topic: College football playoffs
 Argument: Playoffs maintain importance of regular season.

Ex Output:

in favor