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: Employee Free Choice Act
 Argument: EFCA strengthens workers' ability and right to unionize.
[EX A]: in favor

[EX Q]: Topic: Geoengineering
 Argument: Many green orgs and scientists support geoengineering option.
[EX A]: in favor

[EX Q]: Topic: Geoengineering, iron fertilization of algae blooms
 Argument: Algae bloom solutions require fertilizing too much ocean area.
[EX A]:
against