Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Corporate Comedy

"Dear Mr. Mackin..." is one helluva funny book. I was laughing out loud the whole way through.What Mr. Mackin does is write letters to companies about their products, usually regarding their advertising or packaging. He then prints the company's response alongside his letters. It's most often a form letter with an enclosure of coupons, but sometimes not.For light, funny-as-hell reading, you can't do better than this gem of a collection. If anyone knows what the 2,000 body parts that LEVER2000 cleans, I'm sure Mr. Mackin would love to know.