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.

[EX Q]: Our family has liked every other flavored we have tried (BBQ is the best). We like sweet potatoes so we assumed would like these pop chips.  I was wrong, no one in the family likes the sweet potato pops chips.  I highly recommend you go to a store that sells the sweet potato before deciding on purchasing a large quantity.
[EX A]: Negative

[EX Q]: This is a great multi-use sauce.  Great for using as a baste when grilling - fish, chicken, shrimp, pork, etc.
[EX A]: Positive

[EX Q]: Product has a shelf life of two years and was labeled as produced in December of 2009. Product leaked from seal in carton.
[EX A]:
Negative