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

Ex Output:
against


Ex Input:
Topic: Hunting for sport
 Argument: Hunting is a good way of controlling widlife.

Ex Output:
in favor


Ex Input:
Topic: Israeli military assault in Gaza
 Argument: Israel's right to self-defense does not justify mass murder.

Ex Output:

against