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: Single-payer universal health care
 Argument: Universal health care systems incentivize improving patient health.

SOLUTION: in favor

PROBLEM: Topic: Natural gas vehicles
 Argument: Odorless natural gas can escape detection risking fire/explosion.

SOLUTION: against

PROBLEM: Topic: Wave power
 Argument: Wave power systems can attract predatory fish, damaging ecosystems.

SOLUTION:
against