instruction:
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".
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Review: Grand Canyon is a very strange bird. It's a completely unique urban piece, where relating the entire plot would fail to convey much.It's central theme seems to be the inherent uncertainty life holds for people of every race, background and station. But to proclaim that THE theme of the film would be to horribly understate its scope. Similarly, to pigeonhole it in a particular genre is futile.The film has volumes to say, though likely different volumes for every viewer, and says it all in such a non-preachy way from so many angles, that in the end, i can't even define its central message for myself.Nevertheless, it does it's business with such laser precision; every prop, line of dialog, and bar of background music contributing to it's pervasive mood and powerful message, that i'm pleasantly surprised, and come away very thoughtful after every viewing. Still it doesn't feel at all stuffy. A sparkling film with a great cast and everything working. Question: is it a positive review?
answer:
yes


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Review: This for me was a wonderful introduction to the talents and beauty of Marion Davies. She is not only gorgeous but hilarious in this film. (I believe that Lucille Ball may have modeled her later career on Davies' style, that could be termed "zany beauty".) Vidor's direction is light but sure-handed, the story is a chestnut of course but the acting is marvelously contemporary, and the star-watching element for fans of the silent era, with many cameos, adds to the overall fun. It combines the elements of slapstick with adult drama and good old timeless romance quite well. For all movie fans who have a knee-jerk reaction to watching silent films, sit through this one and it may change your attitude.  Question: is it a negative review?
answer:
no


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Review: What the hell was all that about? I saw The Matrix and was amazed. It was the most spectacular movie ever made. What ever possesed the Wachowski brothers to do this film is beyond me.There is no plot, you can't argue with that. Basically all this film was was a load of talking, and don't get me wrong, I have no problem with talky films, but all the talking in The Matrix Reloaded was a pointless load of drivvle. Then there would be a fight sequence which lasted WAY too long, then more pointless drivvle, then another fight scene that lasts too long and it all builds up to the biggest anti-climax ever. A little bearded bloke talking a load of uncomprehensible bull for 20 minutes.Also, Keanu Reeves gives his worst performance yet. I knew he wasn't a good actor but this was beyond a joke. If you watch his films in the order he was in them it would seem he got gradually worse as they went along. God knows what his performance is like in Something's Gotta Give! Keanu Reeves: The only plank of wood ever to become an actor.After the splendor of the first film this came as a massive dissapointment. If you haven't already seen the first film I suggest you watch it, but don't waste your time with this utter pile of turd. Question: is it a negative review?
answer:

yes