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: Manned mission to Mars
Argument: Cumulative challenges and risks of Mars mission are too great.

A: against
****
Q: Topic: Geoengineering
Argument: Many green orgs and scientists support geoengineering option.

A: in favor
****
Q: Topic: Underground nuclear waste storage
Argument: Nuclear-intensive France does not use underground storage.

A:
against
****