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: This tea is stale.  I have had this brand and kind of tea many times, so I know how it should taste.  It's dated Jan. 2013, but it must have been stored improperly.  It has no fragrance and no taste.  Even the teabag paper looks yellowed.  It is worse than supermarket tea.  I cherish my breakfast tea, so am very disappointed, especially having bought six boxes of this useless stuff.  I tried to give it no stars, but that's not allowed, so I gave one for prompt shipping.
Example Output: Negative

Example Input: I order these olives a lot. They are un-like any other olives out there. The subtle flavors of the brine go great with cheeses. One of my favorite appetizer treats for guests.
Example Output: Positive

Example Input: Very tasty chips( ORIGINAL AND OTHER FLAVORS ),but ones with salt flavor way too salty.Not sure who likes so much salt in chips..
Example Output:
Negative