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: My father has owned the previous version of this model for over 3 years. Recently he needed to replace a part that we bought along with it. His unit started sounding odd and now won't turn on. He is very disappointed in it after using it so much.
Output:
Bad review