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

[Q]: My husband and I were not able to attend a birthing class, so the doctor suggested we rent/buy a video. We decided on this one, and although the 'teacher' was a bit corny it was helpful. I especially liked that you could fast forward and skip parts! All in all it was a worthwhile purchase and proved helpful to us both.
[A]: Positive


[Q]: Got this at a great deal and loved the movie. It's nice that I can watch it on my iTouch anytime and not on Flixster under restrictions.
[A]: Positive


[Q]: I find it hard to believe people fall for this stuff. He writes so much stuff that he pulls out of mid-air, supposedly based on the brain research. If you are unfortunate enough to take a class that requires this, read it carefully. He jumps to conclusions with little to no evidence to back it up. Plus, he is neither a teacher nor a neurologist. He just found something he can write about and sound like an expert. Plus the writing seems written for, we'll, let's say, young readers. Very simplistic, which is not always bad, but in this case, it is.Again, read carefully. Analyze his statements and look for the actual scientific proof for them. You will be hard-pressed to find any, either in his book or elsewhere. Total fluff.
[A]:
Negative