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: My dog is a very picky eater, and will eat almost anything with no problems, but this food has been given to her about six times within the last 6 weeks or so. It's okay if you aren't feeding large amounts of each type every day (for example, half an average bag+1/2 per day). But not great since there are much cheaper, less expensive, healthier choices available for pets.
Example Output: Good Review

Example Input: I am a fan of Dan Brown and his books, but "Angels & Demons" just didn't make it. There were many loose threads to be wrapped up as well which ended up left dangling. Why did Angels have the gift of telekinesis? Who was Mallozzi? What does he really know? Etc. etc. The big mystery at the end is never solved either, except for in Brown's own head (which got so tedious after a while).
Example Output: Bad review

Example Input: All this machine can do is shred paper. The shredder blade stops short of the stack every time and you have to shake it or pull out some paper manually for each piece which takes about 5 minutes. The shredded items are always larger than I need even after 1 inch. If you're making a pile over 1" or so, then use your hand since there was no safety guard that came with it. Do not attempt to crush more than one sheet at once, it's impossible.
Example Output:
Bad review