[Solved] Add punctuation to the following phrase to make something grammatically and logically coherent: is is not not not is not is is is is not is not is it not

This riddle has been around for some time on internet platforms such as Instagram, Facebook, and WhatsApp, and many people still argue over what the answer might be, as there are many possibilities. The correct answer is Is is not not. Not is not is. Is is is. Not is not. Is it not?