TASK DEFINITION: In this task, you are given a public comment from online platforms. You are expected to classify the comment into two classes: threat and non-threat. Threat is a statement that someone will be hurt or harmed, especially if the person does not do something in particular.
PROBLEM: Comment: He couldn’t kill that many with a knife.

SOLUTION: Threat

PROBLEM: Comment: "Canada may end up being just a large Puerto Rico"
This is one of the most inane posts I have ever read.
Puerto Rico is part of the U.S., Canada is a sovereign country.
Puerto Rico is a small island. Canada is world's second largest country by size.
Canada is the 10th largest economy in the world, Puerto Rico #60.
Puerto Rico has had negative economic growth for nine of the last ten years, dwindling population, massive economic problems.
With 4.2 projected growth this year, Canada leads the G-7.
It's like comparing the muscle strength of my grandmother to the entire New England Patriots team.
Unbelievable. Your statement makes rational discussion impossible.

SOLUTION: Non-threat

PROBLEM: Comment: Yes all those deplorable or Bernies basement dwellers!!
 It was an epic fail. I've seen some media fails but MSNBC had the worst night for news likely in the last 50 years. 
That was just painful to watch. Ratings were probably just awesome and that's the one time they probably wished the ratings had been awful. 

What an absolute  embarrassment !!

SOLUTION:
Non-threat