You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

Example Input: Very disappointed with purchase.  The dates were so dried up where it tasted like leather instead of dates.  Must have been sitting there for a long long time.
Example Output: Negative

Example Input: I purchased this item to celebrate the birth of my grandson.  I should have opted for real cigars, they might have tasted better. These cigars were very hard and hurt my teeth to chew. Not to mention that these gum cigars were much too sweet.
Example Output: Negative

Example Input: they arrived on time but dont quite melt as advertised required much stiring and left something of a sludge at the bottom of the cup
Example Output:
Negative