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". 

Example Input: Topic: Is Wikipedia valuable?
 Argument: Many incomplete stub articles persist on Wikipedia.'.
Example Output: against

Example Input: Topic: Libertarianism
 Argument: People have full rights to their property that governments can't deprive.
Example Output: in favor

Example Input: Topic: Oil sands
 Argument: Oil sands will be used by some states no matter what.
Example Output:
in favor