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: Education vouchers
 Argument: Profit motive of private schools is costly, undermining vouchers.
against

Topic: Direct democracy
 Argument: Direct democracy is relatively cheap.
in favor

Topic: Earmarks
 Argument: Earmarks are not inherently bad; some are good, some bad.

neutral