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: Gene patents
 Argument: Genes cannot be owned practically, are part of commons.

Ex Output:
against


Ex Input:
Topic: Algae biofuel
 Argument: Algae can be produced locally for food and fuel.

Ex Output:
in favor


Ex Input:
Topic: US offshore oil drilling
 Argument: Noise from offshore drilling can harm sea animals.

Ex Output:

against