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".

Ex Input:
Topic: Open primaries
Argument: Primaries too important in democracy to be internal to parties.

Ex Output:
in favor

Ex Input:
Topic: US offshore oil drilling
Argument: US offshore drilling would hardly lower global oil prices.

Ex Output:
against

Ex Input:
Topic: Full-body scanners at airports
Argument: Full-body scans more effectively reveal concealed weapons.

Ex Output:
in favor