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: Israeli military assault in Gaza
 Argument: Defeating Hamas is key to long-term Israeli/Palestinian solution.
Example Output: in favor

Example Input: Topic: Gay marriage
 Argument: Gay marriage undercuts procreation at time of vulnerability.
Example Output: against

Example Input: Topic: $700 billion US economic bailout
 Argument: $700b plan has been corruptly influenced by Wallstreet.
Example Output:
against