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: Underground nuclear waste storage
Argument: Nuclear waste storage requires huge state subsidies.

Ex Output:
against

Ex Input:
Topic: Kyoto Protocol
Argument: Fighting climate change means cutting emissions with Kyoto Protocol.

Ex Output:
in favor

Ex Input:
Topic: UN Security Council veto
Argument: Vietnam supports banning UN security council veto power.

Ex Output:
in favor