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

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.

A: Positive
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Q: I have had the charger for more than two years. It charges AA batteries just fine, but has a huge problem securing smaller AAA batteries. To charge the smaller batteries you need to flip down the little button at the positive end. In the beginning one of the four AAA batteries would pop up, and now three out of the four won't hold. The problem is the flip mechanism became loose, and any horizontal pressure would push the buttons back up. What I have to do now is using duct tape and a segment of crayon, apply the crayon on the buttons, and wrap the tape around. You know how painful that is.

A: Negative
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Q: This is an in-your-face, tell it like it is, discussion of the good and bad of carrying a concealed weapon. The snap decisions you might make under extreme pressure may have dire consequences unless you understand what you can and cannot do to defend yourself.Very enlightening. A quick read on a very serious matter.

A:
Positive
****