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: Banning vuvuzela horns at the 2010 World Cup
 Argument: Guests at World Cup should embrace S. African vuvuzela tradition.
Example Output: against

Example Input: Topic: Legalization of drugs
 Argument: In the short term it might eliminate drug dealers on our streets but do any of us really think that whatever multinational corporation ends of cornering the drug market will have a problem trading with the existing cartels.
Example Output: against

Example Input: Topic: Castration of sex offenders
 Argument: Castration is better solution than temporary prison.
Example Output:
in favor