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". 

Topic: Solar energy
 Argument: Producing solar cells need not use fossil fuel energy.
in favor

Topic: Direct democracy
 Argument: Direct democracy avoids appointment of unaccountable officials.
in favor

Topic: Filibuster
 Argument: The filibuster is outdated and uncivilized in a modern democracy.

against