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". 

[Q]: Topic: Assault weapons ban in the United States
 Argument: The 1994 US assault weapons ban significantly decreased use.
[A]: in favor


[Q]: Topic: Ecotourism
 Argument: Ecotourism generates funds for conservation.
[A]: in favor


[Q]: Topic: EU constitution reform treaty (Lisbon Treaty)
 Argument: The Lisbon Treaty simply repackages the failed EU Constitution.
[A]:
against