Definition: 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.
Input: I really wanted my son to love this. He is a huge Thomas fan. After purchasing the battery pack only to find out it doesn't provide enough power so that there will be an annoying hiss whenever he plays with it, we discovered other problems. One, his wooden tracks won't fit onto this and two, even after putting pieces on from various sets, all of them don't fit securely or stay together. You can get two trains running in opposite directions but that's not very fun.
Output:
Bad review