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: Abortion
 Argument: The Hippocratic oath forbids doctors from performing abortions.
against

Topic: Bombing Hiroshima and Nagasaki
 Argument: Bombing Japan was ethical in context of the horrors of WWII.
in favor

Topic: Tibet independence
 Argument: China is highly unlikely to agree to any negotiations without ruling out Tibet independence.

neutral