Definition: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: I agree the comment from reviewer GWIRTH "ginnyww". Somehow these Sipderman blu-rays are not norm. They can only play on PS3. No luck with Samsung blu-ray players, not work with Sony blu-ray players either. Manufacturer needs to check what's going on. I also checked two sets of Sipderman blu-rays, one set from Fry's electronics, another set from Amazon, same problem, so that is not random disc defects.
Output:
Negative