instruction:
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
question:
This product requires a stereo player in which the balance is turned totally to the left. Most auto systems have that capability. However if you have Dolby or SurroundSound, it can be difficult (and maybe impossible) to play the cassette without hearing two recordings at the same time. Unfortunately neither the packaging nor the website will warn you of the problem. You therefore should think before buying. Once you have opened the packaging you may be unable to return the product.
answer:
Negative


question:
Just "assembled" the bat cave for my 5 year old. Pathetic construction and workmanship -- half of the gimmics don't work. Another pile of injection-molded plastic parts and stickers that I get to assemble -- what is this thing -- $4 of raw materials + $2 of shipping + $10 of marketing? Garbage. Shame on you Mattel, the only thing worse is the batman figures with the batarangs that take 30 minutes and a blowtorch to get out of the packaging. This batcave will collapse and die within hours of play, I'm sure of it. GARBAGE!
answer:
Negative


question:
The basic premise for this book seems like a great idea for historical (or pre-historical?) fiction. However, it failed to deliver. The entire storyline was so predictable and hackneyed I had to force myself to finish the book. The characters are all one-dimensional and stiff and Auel never really succeeds in bringing them to life. And come on, who really didn't see the ending or the rape scene coming? Auel was obviously trying to create a novel centered around a strong central female character, but she just succeeded in making Ayla looking like an untouchable annoying kid with all the answers. Also, the Neanderthal "mind meld" is one of the most ridiculous things I've ever read. The only reason I give it two stars is because I like the fact that it has a prehistoric setting.
answer:

Negative