You will be given a definition of a task first, then some input of the task.
In this task, you are given a review of a movie and a boolean question whether this review has positive sentiment or negative sentiment. Your task is to generate answer "yes" when the tweet has that particular sentiment, otherwise generate answer "no".

Review: These two men went thru hell and beyond and have produced the movie that conveys the terror that many did not survive. This is definitely a movie about survival, but not without it's touching moments.The finest piece of work I have seen documenting the 9/11/01 tragedy of New York City. Question: is it a positive review?
Output:
yes