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

The smoothie was good but the service was very sub par.

I asked the lady if they served food and without saying a word she pointed to the protein bars.

I then decided to order a fruit smoothie and asked what an acai was. She said its a fruit and then total silence. No kidding.
Output:
NEGATIVE