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.

Went in for dinner this evening.

A long wait, for average food at best. Would not go back and would not recommend.

Service was great, and the cashier was very friendly however.
Output:
NEGATIVE