Instructions: Given an English language product review, determine if it is a Good Review or a Bad Review. A good review is one where the product's review has positive tone and Bad review is one where the tone of product's review is negative.
Input: I found this book extremely slow reading. It seemed the author was more interested in his own observations about life than helping us to learn any lessons we could from it. He gave very few references and never defined some of the concepts he discussed making it difficult for me (avid reader) to work out what is meant by a sentence or concept.
Output:
Bad review