Categorize the comment on the basis of threat. If the comment is threatening output Yes, otherwise output No.

Example Input: Bureau of Reclamation Report to Congress on Western US water security based on future climate models released  March 22 2016 predicts average annual temperatures across the west to increase 5 -7 Degrees F or 3-4 Degrees C by mid late 21st century.  
http://www.usbr.gov/climate/secure/
Example Output: No

Example Input: Probably just out for a quick spin.
My dog used to do that all the time.
Example Output: Yes

Example Input: If the mother/wife saw Nathanial with a gun and did not tell the troopers, isn't she responsible for this tragedy as well?
Example Output:
Yes