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: 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: I have ordered numerous teas, potions, lotions and other remedies...BUT have never had a lack of product in an order that was sealed.  The tea bag wrapping in question was sealed without a tea bag inside.  I would have said something sooner, however...I only tried these when I had a sinus infection and the last 3 times I tried to use one...the sealed pouch was EMPTY.  BEWARE!
Example Output: Negative

Example Input: I eat healthy choice most days for lunch and this one is the worst.  I no longer buy it.  It is flavorless (unless you add a packet of soy sauce).  I don't even think this one will make it into my earthquake food kit.
Example Output:
Negative