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: Wound Tight is a sexy little novella that combine the Rough Riders world with the Blacktop Cowboys. It a fun read with lots of dirty talk. Callie Morgan is an independent, sassy young woman that knows what she wants and has the drive to go get it. Justin Donahue is a retired bull rider who has been working in various jobs trying to find what makes him happy. He has had a series of bad relationships with woman who just wanted him for his money. Callie and Justin have instant chemistry but can Justin get past all of his hang ups to try and have a relationship with her?
Example Output: positive

Example Input: Worked great bought this iPad case for my niece and she loved it would recommend to anyone who has bought a new iPad and wants to keep it protected from drops and other things that kids do.
Example Output: positive

Example Input: I have only used it three days. First time I used the recommended dose and yes, my anxiety was gone but I felt extremely tired and sleepy. Second time I had 15 drops once a day, still I got so sleepy. Yesterday, I had 4 drops dissolved in water in the morning when my anxiety is at its worst and I felt the nice relief without the sleepiness and tiredness. 4 hours later I started to get anxious again, and I had 2 more drops in a glass of water as well. I normally don’t write reviews due to my anxiety, lol. But I’m feeling so calm now. And I haven’t felt this calm in years. So happy. I hope it keeps working for me. I know everyone is different, I pray it works for most people. Living with anxiety is no life. Good luck to all.
Example Output:
positive