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.

Example Input: If you're looking for a water softener to reduce mineral build up in your water, this is the product you want. I have used RO systems before, and there isn't a whole lot difference between them.
Example Output: Good Review

Example Input: It appears to me that this cd should have been entitled &#34;I Want a Hippie In My Living Room.&#34; The selections are so awful it is beyond imagining! Nothing but music which sounds like elevator music. Not one track really touched my heart or mind enough torecommend it. Don't waste your money. Sorry for the bad grammar and spelling.
Example Output: Bad review

Example Input: If you are looking for a guide of which parks to go to, and what sights exist within those parks...this book is NOT the one. This so-called "travel guide" does not actually help in any practical way. The writing style makes it seem as if she has some kind of axe to grind with a lot of these places, but that hardly seems like it's even close at all.
Example Output:
Bad review