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: Gene patents
 Argument: Genes cannot be owned practically, are part of commons.
[EX A]: against

[EX Q]: Topic: Cluster bomb ban
 Argument: Cluster bombs kill soldiers of militaries deploying them.
[EX A]: against

[EX Q]: Topic: Ending US sanctions on Cuba
 Argument: Sanctions violate the principle of just war.
[EX A]:
in favor