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: Pickens US energy plan
 Argument: The Pickens Plan is generally not viable.
Example Output: against

Example Input: Topic: High-speed rail
 Argument: Unlike automobiles, rail fosters a sense of community.
Example Output: in favor

Example Input: Topic: EU constitution reform treaty (Lisbon Treaty)
 Argument: Lisbon Treaty will increase taxes for many EU citizens.
Example Output:
against