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

Example Input: We got our PowerBook in July of 2003 and had to replace the Apple adapter twice. I finally got fed up with the flimsy cord and purchased this Macally PS-AC4 adapter and I am very happy with the quality of the product. We've been using this for months and the only complaint (which is why the 4 stars and not 5) is that we miss seeing the little light around the end of the cord that plugs into the PowerBook that indicates the charge status (the one that glows orange or green). I would highly recommend this replacement to anyone, as long as you can live without the status light. At this price, it is hands down a better alternative to the delivered cord.
Example Output: Positive

Example Input: The bed needs air refilling more often than I thought it would- every 3 days at the most. So much so that if I didn't pump it, the bed would all be like a water bed with "jelly-like" feeling. To lessen this effect I situated it in a corner of the room against the walls. Further more, what surprised me was the round water condensation on the bed sheet just underneath my (head) pillow in the morning. But what confuses me is that in the evening the bed feels cold (or the air inside feels cold).What I like about it though is that the pump works real fast in inflating- although it is loud for an evening activity.
Example Output: Negative

Example Input: I wasn't expecting this to be a great movie, but figured it would be a fun enough way to zone out for a while. Wow was it ever worse than I thought it could be! Full of "clever" one-liners, bad characters (both humans and robots... really? There's an old British autobot named "Q" who designs fancy gadgets and weapons?), and action that was at times fun, but for the most part incredibly drawn out and ultimately just boring. Basically this was 2.5 hours (and it feels like 4) of unpleasantly spent time.
Example Output:
Negative