Read the passage and find if the passage agrees, disagrees, or has a neutral stance on whether Global warming is caused by human activities. Answer only with keyword (a) agrees - if passage agrees with the target (b) disagrees - if passage disagrees with the target (c) neutral - if the given passage neither agrees nor disagrees with the target. You don't need to use external knowledge in this task, and you have to answer based on the given passage.

Ex Input:
Greenland is not only melting.

Ex Output:
neutral


Ex Input:
There has been no increase in global temperature for 18 years.

Ex Output:
disagrees


Ex Input:
The global warming of the 1900s is caused by a rise in solar output.

Ex Output:

disagrees