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: Cluster bomb ban
 Argument: Cluster bombs are usually used in uninhabited areas.

Answer: against


Question: Topic: Gay marriage
 Argument: Gay marriage threatens cultural tradition of marriage.

Answer: against


Question: Topic: Hydrogen vehicles
 Argument: Hydrogen cars are like high-performance electric cars.

Answer:
in favor