instruction:
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
question:
The case I had didn't fit properly - the window obstructed the rightmost side of the display. You could shift it over, but it would always shift back. I don't know if they are all that way (maybe I got a bad one?), but I didn't want to buy another one to find out.
answer:
Negative

question:
This book should have been written more as a novel than a how to. This book goes into story like dimensions and there are others better written on the subject.
answer:
Negative

question:
A great little tool for seeing the normally unseen. Scope easily focuses by tilting the scope rather than fiddling with adjustment knobs. It's so fun to see things really close up!
answer:
Positive