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 lamp does work. A little tricky on installation, but...works. Unfortunately it's not as bright as you would hope. Not a terrible light.
Example Output: Bad review

Example Input: This one is almost all about his love life and a little bit about religion. It's got some of the typical'man on mission' stuff in it but mostly it's just an attempt to make money when he hasn't got anything better to do. I can respect him trying for God by being a missionary or whatever, it's a noble endeavor.
Example Output: Bad review

Example Input: The movie is pretty good, however since you have to buy this separately on DVD, don't bother. The DVD comes in one single sleeve, with no inserts.
Example Output:
Bad review