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.
One example: These are junk! Both bulbs have burned out within a two month period!! I cannot believe that this company can be in business with such poor quality. I have used infrared lights for my ball python for many years now and I get a varied range of months from a bulb, but I have never gone through two bulbs in a matter of two months! I am very disappointed.
Solution is here: negative
Explanation: The user seems very disappointed in the product. Because the bulb they ordered has been burned out earlier than usual. So, it's a negative review.

Now, solve this: Although it was incredibly tough, I made it through to the end, without looking away. I could only imagine how difficult this project must have been to work on. Thank you Ken, Lisa, and to all of you that had a hand in producing this documentary. It was difficult to watch, but I cried the hardest during the parts where I was able to see some of the rescued dogs doing so well; a reassuring glimpse of the light at the end of the tunnel.
Solution:
positive