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: Michigan and Florida delegates in 2008 US elections
 Argument: It is unclear who should pay for mail re-votes in Mich and Florida.
[EX A]: neutral

[EX Q]: Topic: Banning vuvuzela horns at the 2010 World Cup
 Argument: Guests at World Cup should embrace S. African vuvuzela tradition.
[EX A]: against

[EX Q]: Topic: Geoengineering, iron fertilization of algae blooms
 Argument: If natural iron fertilization occurs, it is OK for humans to do it.
[EX A]:
in favor