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: European missile defense
 Argument: Real threat of rogue states missile attacks.
[EX A]: in favor

[EX Q]: Topic: Carbon capture and storage
 Argument: Sequestered C02 can be injected into reservoirs to recover oil.
[EX A]: in favor

[EX Q]: Topic: Mandatory labeling of genetically modified foods
 Argument: Labeling of genetically modified foods increases food prices.
[EX A]:
against