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

Ex Input:
Do not buy this toy. If you are given this toy as a gift, return it for store credit. This is a flimsly and poorly designed stack of platic and paper. The secret door doesn't work, the elevator doesn't slide and toys get stuck in there. The suggested 10" batman doesn't work with the zip line, bungee or even the elevator. The add says "Using new adhesive technology, you can set up the Batcave on just about any wall" so they want us to glue this thing on to a wall.Please don't buy this toy.

Ex Output:
Negative

Ex 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.

Ex Output:
Negative

Ex Input:
It's all good. This album suffers from a common problem among metal albums in that almost all the songs sound very similar, but in this case it just doesn't matter because it's all enjoyable. From the haunting vocals to the masterful pacing of the instrumentals, every song on here is actually fairly inspiring to listen to, cliche as those descriptions sound. Definitely worth a buy.

Ex Output:
Positive