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: We first had Stonewall Waffle Mix when we received it in a gift basket about a year and half ago.  We have been using it ever since.  The flavor of the waffles are absolutely out of this world.  We won't ever go back to Bisquick for our waffles!
Example Output: Positive

Example Input: Because they brought bagels to America without which we never could get maximum level of enjoyment out of this delightful low cost caviar.  Caviar for breakfast!  We use the small soft plain bagels cut in two upon which we smooth a bit of cream cheese then a nice ring of caviar in the center of which is colorful and delicious cut up hard cooked egg then add a perfect cup of coffee.  This is is best done on a week end so it can be savored ever so slowly--no stress involved--pure luxury.  Yes, Yes, Yes, yes, yes.
Example Output: Positive

Example Input: Very weak blend, slightly bitter aftertaste.  Noticeably light brew when brewing.  Won't purchase again, in fact, I regret this purchase.  Even on 4 oz brew, still really weak taste.
Example Output:
Negative