Categorize the comment on the basis of sexual explicitness. If the comment is sexually explicit output Yes, otherwise output No.
One example: hahahahahahahahhha suck it.
Solution is here: Yes
Explanation: The comment has the word 'suck' in it and is classified as sexually explicit. Hence, it is a positive example

Now, solve this: I have learned a lot from this
Everybody suddenly is an expert on where lot lines are, whereas the day before they were not
Everybody must have been there because we have several thousand first hand accounts with expert dog behavior testimony
Everybody"s dog is perfect and never known to be aggressive even though police reports show otherwise
The shooter should receive death threats on facebook from internet tough guys who would never confront anybody in person
Obviously the shooter parked" in the dog owners yard" when was the last time somebody drove up in front of your house and pulled up on the grass?apparently these psychic witnesses saw all this
Labs are never aggressive!! Guess what clueless dog owners. Dogs behave incredibly different absent owners. Get over it.
All these silly comments convince me you dog experts are anything but that
Solution:
Yes