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

[EX Q]: my scanner hasn't worked since the day i took it out of the box, installed the software, and the green light is on but when i hit scan it does nothing! looks like it's a dud. lol.
[EX A]: Negative

[EX Q]: I bought this for my great nephew - 18 months old who is already learning to count and learn his colors. I also got him a dino puzzle by Melissa & Doug. Both items are really great. They are very durable and colorful so he likes playing with them and putting the shapes back in their places. The number puzzle is fun because when you take the number out, there are pictures under each number for example - take out the three - there are three turtles (I may have the wrong animal but you get the gist!!). His 3 year old cousin that visits often also loves playing with them so they have a good age range.
[EX A]: Positive

[EX Q]: I ordered the samples of this product because I was interested in trying the sulphate free shampoo, which is expensive. The samples are REALLY random, so you may not get ones you actually wanted to try. Most of the ones I got were things I wasn't interested in. And I didn't get the shampoo sample. They say you can return it for a refund, less shipping and handling, but the shipping and handling were double the cost of the product itself.
[EX A]:
Negative