Definition: 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: The product does absolutely nothing. Don't waste you money. It doesn't make my water crystal clear, or anything. Nothing at all. Absolutely not worth a penny. I went back to doing it myself. Only took me about half as long and was twice the price. It's all in your head. Spend your money on things that actually work. This is very expensive junk. I'm going to be throwing mine away. They are very small. So they should really list them. Mine don't lay flat either.
Output:
Bad review