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

SOLUTION: against

PROBLEM: Topic: Polygamy
Argument: Polygamy is traumatizing and depressing for wives.

SOLUTION: against

PROBLEM: Topic: Geoengineering, solar shading
Argument: Volcanoes perform solar shading; why is it wrong for humans to do so?.

SOLUTION:
in favor