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: This book was OK although the title kind of leads one to think it's a true story. There are many grammatical errors and missing words (plurals). For example, the term "kitten" should have been "kitt" in paragraph 3 (p. 217). The author does describe his feelings about being able to travel with dogs while he can no longer walk. He explains how he's going to use this experience for others too. At times, it seems as though some phrases or sentences were thrown together hastily.
Example Output: Good Review

Example Input: These are by far the best quality and most durable dog toy I've found. I don't feel like they should be $25, but that's just me.
Example Output: Good Review

Example Input: The concept is great and there are some nice games on it but when I got the device, it froze with a black screen and then rebooted saying I had to install an update. I tried repeatedly until I gave up. They should work more diligently in fixing the bugs. This thing really needs work. Very frustrating for my kids.
Example Output:
Bad review