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".

Ex Input:
Review: I saw Brigadoon on TV last night (12 Sept 2009). I am 61 years old and have been watching films as long as I can remember. I can truthfully say that Brigadoon stands alone as by far and away the worst film I have ever seen. The accents were shameful. The local children's club would have produced better sets. The characters were so wooden that they probably contracted dry rot from the tears of the patrons who had the misfortune to watch them. It is to be hoped that the stars of this film had hides thick enough to protect them from the embarrassment which they must have suffered on seeing this film. The owners of this tripe should perform a great service to mankind and destroy all copies of this film. Question: is it a positive review?

Ex Output:
no


Ex Input:
Review: The Williams family live on a ranch located in the middle of the remote desert. They find themselves in considerable peril when the place is suddenly thrust into a time vortex where the past, present and future collide in a wildly chaotic and unpredictable manner. Director John "Bud" Cardos begins the film on a compellingly mysterious note and gradually allows things to get stranger, crazier and more exciting as the loopy story unfolds. Moreover, Cardos fills the screen with plenty of dazzling visuals and does a nice job of creating a genuine sense of awe and wonder. The admirably sincere acting from a game cast qualifies as another major plus: Jim Davis as hearty patriarch Grant Williams, Dorothy Malone as his cheery wife Ana, Christopher Mitchum as the concerned Richard, Marcy Lafferty as his lovely wife Beth, Natasha Ryan as sweet little girl Jenny, and Scott C. Kolden as the gutsy Steve. The funky special effects offer an inspired combo of gnarly miniatures, neat stop-motion animation monsters (said creatures include a tiny spindly hairless guy, a big, lumpy, fanged beast, and a scrawny lizard dude), and nifty matte paintings. Richard Band's rousing full-bore orchestral score really hits the stirring spot. John Arthur Morrill's crisp, sunny cinematography likewise does the trick. A fun flick. Question: is it a negative review?

Ex Output:
no


Ex Input:
Review: . . . or type on a computer keyboard, they'd probably give this eponymous film a rating of "10." After all, no elephants are shown being killed during the movie; it is not even implied that any are hurt. To the contrary, the master of ELEPHANT WALK, John Wiley (Peter Finch), complains that he cannot shoot any of the pachyderms--no matter how menacing--without a permit from the government (and his tone suggests such permits are not within the realm of probability). Furthermore, the elements conspire--in the form of an unusual drought and a human cholera epidemic--to leave the Wiley plantation house vulnerable to total destruction by the Elephant People (as the natives dub them) to close the story. If you happen to see the current release EARTH, you'll detect the Elephant People are faring less well today. Question: is it a positive review?

Ex Output:

yes