Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Unclear

I used this text as a student while at the University of Auckland.At times I found the text woefully unclear. For instance, from pages 68 through 83, the authors delve into a brief excursus on the philosophy of language and a theory of reference. Their explication of the causal-historical theory is unclear at best, and seems to delve too quickly into the pros and cons of the theory without first explaining it in any depth.At other points I found myself going back over sections of text 4 and 5 times before I finally latched onto the concept at hand, even then it was with the aid of articles on the Stanford Encyclopedia of Philosophy.In sum, I do not recommend this text. Jaegwon Kim's text book aptly titled "Philosophy of Mind" is *MUCH* better.