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: 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?
yes

Review: This movie has some things that are pretty amazing. First, it is supposed to be based on a true story. That, in itself, is amazing that multiple tornadoes would hit the same town at night in the fall-in Nebraska. I wonder if the real town's name was close to "Blainsworth" (which is the town's name in the movie). There is an Ainsworth, Nebraska, but there is also a town that starts with Blains-something.It does show the slowest moving tornadoes on record in the the seen where the boys are in the house. On the other hand, the scene where the TV goes fuzzy is based in fact. Before Doppler radar and weather radio, we were taught that if you turned your TV to a particular channel (not on cable) and tuned the brightness just right, you could tell if there was a tornado coming. The problem was that by then you would be able to hear it. Since I know something about midwest tornadoes, it made this movie fun for me. I enjoy it more than Twister. I mean, give me a break-there is no way you could make it through and F5 by chaining yourself to a pipe in a well house. Question: is it a positive review?
yes

Review: I bought this (it was only $3, ok?) under the title "Grey Matter". The novelty of seeing Sherriff Roscoe in a non-DukesOfHazzard role intrigued me. As the other reviewers warned, it's a pretty boring tale of a top secret government experiment gone awry.And yes, there are plenty of establishing shots, especially of a house with a pool in front of it. Some of the characters and interiors are so nondescript I guess the filmmakers worried we might forget who is who, so they keep tipping us off by first showing the outside of the buildings. It's actually kinda funny. After awhile the pool shot feels like a tv channel's station identification logo, reminding us that we are watching "Grey Matter".I also enjoyed two bouts of name-calling. At one point an angry test subject taunts somebody in charge by calling her a "Scientific b*tch!". It's just a very inadequate insult. Several scenes later a different subject lets off steam by muttering about that "scientific b**tard!". It just sounded very awkward to me.Someday this movie will disappear forever. Another decade from now it will likely be impossible to find any copies of it. Almost like it never happened. Question: is it a positive review?

no