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".

Topic: Deporting illegal immigrants in the US
Argument: Trail of Tears demonstrates injustice of mass deportation.
against

Topic: US health care reform
Argument: Government-approved insurers of US health care law limits competition.
against

Topic: Vehicle fuel economy standards
Argument: Fuel economy standards increase car manufacturing costs and prices.
against