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". 

[Q]: Topic: Electric vehicles
 Argument: It takes too long to recharge electric vehicles.
[A]: against


[Q]: Topic: Corn ethanol
 Argument: Ethanol energy is a net CO2 polluter.
[A]: against


[Q]: Topic: Oil sands
 Argument: Tar sands can't enhance energy security; too expensive, not enough.
[A]:
against