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". 

Topic: Rebuilding New Orleans
 Argument: New Orleans civilization should be maintained despite hurricane threat.
in favor

Topic: Trans fat ban
 Argument: Trans fat ban will hurt small restaurants most.
against

Topic: Fairness Doctrine
 Argument: Balanced left/right broadcasting exist w/o Fairness Doctrine.

against