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: Vehicle fuel economy standards
 Argument: CAFE standards have strong history of reducing US emissions.
in favor

Topic: Banning Muslim hijab
 Argument: Many Muslim women view the veil as a means to protect their modesty and privacy.
against

Topic: US Renewable Electricity Standard
 Argument: Renewable electricity standard increases energy prices - unpopular.

against