TASK DEFINITION: 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". 
PROBLEM: Topic: Algae biofuel
 Argument: Algae from coal ties the biofuel to fossil fuels.

SOLUTION: neutral

PROBLEM: Topic: Banning cell phones in cars
 Argument: Markets are better at regulating cell phone use in cars.

SOLUTION: against

PROBLEM: Topic: Airport security profiling
 Argument: Most people accept profiling as necessary for security.

SOLUTION:
in favor