Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sad but true

I have been a fan of Richard Bach for 15 years now. He helped shape the person I am from age 15. I was delighted to find that he had written a new book, I even went out and purchased it. Being from Australia, it ended up costing me about $40. I should have saved my money. It seems to me that he got tired of the book halfway through and just stopped writing. Shame really, some very nice ideas, that definitely deserved to be expanded upon, and it lacked the depth of his earlier work.