Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I guess it's funny if you like that sort of thing.

I cannot seriously believe that this book is supposed to be a text for college students. I think this one paragraph sums it up:"Hey, Harry, here comes another shipment," said Joe Saliva to his brother. The Salivas live in the mouth and, when food enters, they help break it down to small manageable pieces. These pieces are then mailed by pneumatic tube (the esophagus) to Phil Hydrochloric Acid who lives in Stomachville. Hydrochloric acid (HCl) activates enzymes that break the food down even further so it can pass into the small intestine. Another town, Liver, sends Bobby Bile to help break down the fatty shipments. Once these shipments (food) are made small they can be placed in local post offices for delivery to various other cities (body parts). The pieces without ZIP codes are unusable and are discarded by being sent via the large intestine through the anus into space (that is, flushed into another galaxy).There is nothing I can add to that.