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". 

[EX Q]: Topic: Is Wikipedia valuable?
 Argument: Many vandalisms on Wikipedia are not corrected for months.
[EX A]: against

[EX Q]: Topic: Colonization of the Moon
 Argument: Moon's gravity is too low for human health.
[EX A]: against

[EX Q]: Topic: Network neutrality
 Argument: ISPs have right to free speech, including right to limit access.
[EX A]:
against