Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Input: Consider Input: At 80" iong, this is an extra long twin, not a standard twin. Consequently I had to take back the sheets I bought, as they were 5" too short. I would have ordered a different model had I known that 80" wasn't standard. It's easier just to replace the sheets and I don't have time to send the bed back.

Output: Negative

Input: Consider Input: My daughter loves her blocks. She will get them all out and look at each one until she finds her favorite. She likes to shake them and see what each one does. These are cute little blocks that have hours of imaginative playtime inside. They also have blunt corners, so no sharp edges like wood blocks for the safety of smaller children. The fact that they have the letters of the alphabet and a corresponding object inside makes them a great learning tool even for older tots. We have really enjoyed these and recommend them to our friends.

Output: Positive

Input: Consider Input: This is the worst book I have ever read. The attempts at symbolism are bogged down with unnecessary detail and the language is over the top even for the time period. I hurled it across the room at one point in agitation and disgust.
Output: Negative