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]: I have a 2 1/2 year old 60 pound German wirehair pointer.  We feed this food during hunting season due to his increased metabolic needs.  He burns so many calories, he eats 8 cups of this food a day (with zeal).  We use the large bites to help keep the tarter and plaque off of his teeth (and to slow his eating).  Due to the high quality of this food, he can keep up his energy, keep his weight up, and recover more quickly from scrapes/bumps from running the field.  Our vet's exact words were, "Your dog is an example of perfect health."  You may think the price on this food is high, but it is worth it.  You get what you pay for.  Also, consider the canned version of this food.  It is a nice way to feed/hydrate a dog after a long day hunting - just give them an hour to settle down first.  On a side note, we feed Diamond Naturals Beef and Rice in the off season.  We have no digestive issues transitioning from one to the other (we switch over a period of a few weeks).
[EX A]: Positive

[EX Q]: I love Twinings Lady Grey but the most recent batch was pretty bad. Regardless of how I brew it I get an odd odor that masks the characteristic Lady Grey aroma. I used some older tea under exactly the same conditions and got a perfect cup. I've got 6 tins of this stuff and it is a lost cause.
[EX A]: Negative

[EX Q]: Loved the idea, but it only took my lab puppy less that 10 minutes to open this and destroy it!!  The only thing left is the purple "rope" from the middle, which is now a great chew toy.  Too bad--the whole thing should be made out of indestructible material!
[EX A]:
Negative