Definition: In this task, you are given Yelp reviews. The task is to classify a review as "POSITIVE" if the overall sentiment of the review is positive or as "NEGATIVE" if the overall sentiment of the review is negative.
Input: I don't know how the service was so bad; but it was. I came here for a later dinner, around 9:00 p.m. and somehow ended up waiting at every part of my dining experience. I really don't even have much to say besides the fact that dinner took more than 45 minutes to get to the table. In the meantime, the table next to us (who ordered at the same time, ate and left) and people who came after us were served their meals as well. I really don't know what happened, but the manager didn't have anything to say.

So sure the food was good, but the service sure could use some improvement.
Output:
NEGATIVE