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: The sound is horrible. You have these little 'headphones' that are supposed to go on over the ears and they don't even fit my 12 year old. He was so upset because it didn't work for them. No matter how tightly you put these on, his glasses pushed them off at every turn. They wouldn't stay put. Don't waste your money. I returned mine immediately. Bummed kids = big headache.
Example Output: Bad review

Example Input: Excellent video quality. It is nice to be able to leave my laptop in charging dock while watching tv from bed.
Example Output: Good Review

Example Input: I am a fan of the first three books in this series. The next book is not out yet but if it turns out to be as disappointing as this, then the only way I'll get through that one will by skimming it. I really don't want another Anita Blake book with all her stupid self-centered angst. This series has gotten to where I can't stand any more so now I'm just going to try my luck reading some vampire novels. No wonder these were made into films.
Example Output:
Bad review