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

Example Input: Received this in great time- I have no problem with the seller:-)BUT! The inside of the case lists all types of materials this can cut including metals, which is what I got it for.One punch through soft 26ga copper sheet and the edges of the punch bent & in some areas, flaked off. The second disk I cut did it in completely. I had to file all of the edges and it probably would have been easier to cut the sheet with shears.So, not for metals.However, I can see it would be great for leather, paper & plastics.To me it was worth the money spent on the chance that it would actually cut metal disks.
Example Output: Negative

Example Input: It was interesting to read The Foxes of Harrow again, as a "senior citizen, since I was only in my early teens the first time I read...and enjoyed...the book. It is quite sensual, considering the year it was written. It has held up fine during the years. I probably understood the nuances better as an adult than as a teenager. Frank Yerby was a brilliant writer, and in this book he presents a balanced view of what white slave owners and their slaves faced during that pre-civil war era. I couldn't help comparing it with Gone With the Wind as I read it.
Example Output: Positive

Example Input: As a nerd, I'd always dreamed that a race of nymphomaniacal superwomen would descend upon me from space and probe me to no end. Until the night it happened. It turns out excessive probing can be quite painful, not to mention humiliating. Femalien offers those nerds too scared to undergo sexy alien abduction a legitimate erotic alternative. Three billion thumbs up.
Example Output:
Positive