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". 
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Question: Topic: Abolition of nuclear weapons
 Argument: It's not possible to abolish nuclear weapons now that the are at large.

Answer: against


Question: Topic: Polygamy
 Argument: Polygamy undermines the traditional institution of marriage.

Answer: against


Question: Topic: US health care reform
 Argument: 2009 health care reform bill can be improved over time.

Answer:
in favor