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: 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.
Example output: negative
Example 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.
Q: I have used Halo Sweatbands for years, but (in my opinion) the rubber sweat-blocking strip always starts peeling away from the fabric (re-gluing provides only a temporary, fix). Before buying new Halos, I thought I would try these fabric sweatbands -- the much lower price made it worth the risk. MUCH TO MY SURPRISE, the sweatbands really work, and work well! I use them for (fast, long-distance) bicycling and for playing Ultimate Frisbee. In both cases, they really do prevent sweat from running down my face and into my eyes. Apparently the fabric really does its job as advertised and evaporates the heat quickly. I have been wearing these in very humid weather with temperatures in the 80's. I certainly DO recommend giving these a try (for far less money). My only "knock" is the smallish knot on the band that has to be positioned just above or below my cycling helmet strap -- otherwise it becomes an uncomfortable pressure point, but that's a very small consolation.
A:
positive