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 product works great with my Sony NEX 5.I was a bit disappointed when the first adapter that was sent to me didn't fit at all. You are supposed to insert batteries through little holes, and as soon as it snaps in place, you're suppose to twist or pull back so the battery will make contact. The holes looked too small for me, but if you force them in with enough force, they snap into place. But now that I've got this one right, it's pretty sturdy.
Example Output: Good Review

Example Input: I bought 2 of these radios and at 1st i was happy with them but after a few weeks the sound became distorted (crackling etc) when playing songs or using in stereo mode on FM. You have to turn both radio's off and back on, then they resume normal. Tried upgrading firmware without any luck, tried multiple frequencies still not acceptable. Now one radio doesnt detect FM radio stations at all, cannot scan for weak signals. A poor purchase!
Example Output: Bad review

Example Input: Not to be too harsh but this movie was awful. I had a hard time understanding what everyone was saying and the actors were all over the place. Save your money and watch some of those other Chinese martial arts dramas instead or find an American production instead. The fighting scenes may appear authentic compared with movies like Crouching Tiger Hidden Dragon, The Forbidden Kingdom, or even Gladiator but they are no where near realistic. If you want high quality look at Jackie Chan as Bruce Lee.
Example Output:
Bad review