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: Algae biofuel
 Argument: Algae from coal ties the biofuel to fossil fuels.
Example Output: neutral

Example Input: Topic: $700 billion US economic bailout
 Argument: Not passing $700b bailout risks sending economy into major recession.
Example Output: in favor

Example Input: Topic: NATO expansion
 Argument: NATO expansion helps deter Russian expansionism.
Example Output:
in favor