In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

Example Input: This is a very useful tool. The leather protects your hands from getting burned. The second handle is great when I want to hold the dog close to his collar.
Example Output: positive

Example Input: The clubs might be great, but we will never know! We ordered the MEN's 16 piece Callaway set for our son for Christmas, but received the WOMEN's 11 piece set in error. We sent it back to get the correct MENS set, and within two days we received the replaced package. Only to open it and find the same WOMEN's 11 piece set AGAIN! We have sent it back again for a replacement ... hopefully the 3rd time is a charm!!
Example Output: negative

Example Input: I have read all reviews before I bought this, luckily, I received an item with any issue. The stun gun can make loud noisy like other buyers said, the flashlight is not bright enough, but It can blind the attacker. I have try the stun function and my friend said it make a huge painful sense.
Example Output:
positive