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". 

Topic: Legalization of drugs
 Argument: In the short term it might eliminate drug dealers on our streets but do any of us really think that whatever multinational corporation ends of cornering the drug market will have a problem trading with the existing cartels.
against

Topic: Kyoto Protocol
 Argument: It is unimportant for the US to join Kyoto now.
against

Topic: Is a nuclear Iran intolerable?
 Argument: A nuclear Iran is an existential threat to Israel.

against