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

If it were true that you just received a(n) email from a teacher with that many errors, and assuming you have the ability to count and correct each one, then you'd be able to provide a specific number instead of an ambiguous range, along with examples of the most egregious mistakes. SYH won't help with this fairy tale, but I can.

"Teacher" is singular, "them" and "their" are plural. You flunked.
No

Unless your dart hit the name 'Donald Trump'.
Yes

Good for Gov. Walker and good for Alaska. While Comm. Monaghan and I didn't always agree on everything he was by far the best Public Safety Commissioner I ever worked with. He is a good man who will work hard in a tough position.

No