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: Nuclear energy
Argument: Uranium is abundant and will last for hundreds of years.

Ex Output:
in favor

Ex Input:
Topic: Obama, meeting with hostile foreign leaders without preconditions
Argument: Talking to your enemies is not a concession.

Ex Output:
in favor

Ex Input:
Topic: Banning vuvuzela horns at the 2010 World Cup
Argument: Fans can be trusted to use vuvuzelas safely.

Ex Output:
against