instruction:
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". 
question:
Topic: Mandatory labeling of genetically modified foods
 Argument: Labeling GM foods applies precautionary principle to unknown risks.
answer:
in favor


question:
Topic: Hydroelectric dams
 Argument: Dams eliminate forests that absorb CO2 from the atmosphere.
answer:
against


question:
Topic: Palestinian right of return
 Argument: No formal international legal right of return for Palestinians.
answer:

against