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: 700 mile US Mexico border fence
 Argument: Building a border fence is not racism.
in favor

Topic: Random sobriety tests for drivers
 Argument: RBT has been successfully implemented in many modern democracies.
in favor

Topic: Public health insurance option
 Argument: Public insurance option will increase taxes, drag-down economy.

against