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: Geoengineering, solar shading
 Argument: Solar shading would reduce sunlight received by plants.
[EX A]: against

[EX Q]: Topic: Corporate free speech
 Argument: Voters can be trusted to judge corporate speech/messages.
[EX A]: in favor

[EX Q]: Topic: Libertarianism
 Argument: Free market economics fosters capitalist authoritarianism; undermines rights.
[EX A]:
against