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

Example Input: this product is good for child I guess..cause it is a little thin...but it is better than the one I saw on sports authority which is thiner
Example Output: Negative

Example Input: i thought it was a very entertaining movie, should have gotten more press when it came out. very good acting also
Example Output: Positive

Example Input: FIRST OF ALL LET ME START BY SAYING THIS WAS A VERY GOOD BOOK. I HIGHLY RECCOMEND THAT ALL TEENAGE GIRLS READ THIS BOOK. I FOUND IT TO BE VERY UPLIFTING, & LIKE EVERY DAY LIFE. MUST READ!!
Example Output:
Positive