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: Puerto Rico statehood in America
 Argument: Puerto Rico would burden US welfare system.

Ex Output:
against


Ex Input:
Topic: Full-body scanners at airports
 Argument: The price of a human life is incalculable.

Ex Output:

neutral