You will be given a definition of a task first, then some input of the task.
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.

This product performed as expected, and was delivered within only a couple of days with standard shipping. However, the item I received did not have any markings on it showing that it's actually a Toshiba battery. After charging this battery fully, I've been using it for about three weeks, so I'm still unsure if that's what makes it function properly. Overall, since it's such an inexpensive battery, I'd say it's worth taking into consideration.
Output:
Good Review