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". 
--------
Question: Topic: Castration of sex offenders
 Argument: Innocent shouldn't face choice of more prison vs. castration.

Answer: against


Question: Topic: Three Gorges Dam
 Argument: Three Gorges Dam damages water quality.

Answer: against


Question: Topic: Open primaries
 Argument: Primaries too important in democracy to be internal to parties.

Answer:
in favor