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: US health care reform
 Argument: US health care law ends pre-existing conditions discrimination.
Example Output: in favor

Example Input: Topic: Colonization of the Moon
 Argument: Moon's gravity is too low for human health.
Example Output: against

Example Input: Topic: Ban on human reproductive cloning
 Argument: If women have a right to reproduce, society can't say not by cloning.
Example Output:
against