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 son was very upset when the book didn't have pages. I called and received a new book, which also wasn't the correct book. Needless to say it will go in the garbage. What a rip off! They should take out all reviews that are not written by "Amazon Verified Purchase". This has never happened before.
Example Output: Bad review

Example Input: I like the concept of these. Instead of, say, a simple plastic tube, you insert an empty bag into it, and then just tie it to your existing trashcan liner. It works great, no more bags falling out all over my kitchen counter, etc. So, why only two stars?? The first one was destroyed by moths, or rather by ants which found their way inside while waiting for a new bait station when they noticed this bag.
Example Output: Bad review

Example Input: First of all, the battery life was fine until this morning when it died. The computer just shut off and a message came across my screen saying that it was low on power while I was still typing in a word. Then after one little word went by, it gave me an error message stating that the power adapter had failed. When I turn back on, all of the icons are gone and now there is only black screen. Not worth fixing.
Example Output:
Bad review