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: You can debate Prince's acting talent, or even his choice to parody his own life in this film. There is no debate about his musical talent either then or now. He seems like a shadowy has-been twenty years later, but the music remains relevant and fantastic. Having lived through the hype of this movie (graduated high school in'85) I can tell you that there was nothing bigger at the time. From Tipper Gore (Al's wife) trying to censor "Little Nikki" and every thing else under the sun via the PMRC (Parents Music Resource Center) to every "Air Band" at the time impersonating Prince, it was the absolute hottest thing out. For a few weeks at least, Prince was bigger than Madonna and Michael Jackson. We all waited for the film and were soooooo excited when it premiered. It didn't disappoint. EVERYONE was caught up. I was an MTV junkie at the time(they actually played music then....all the time)Prince played at least once or twice an hour. I must qualify this commentary by saying that, at that time, my favorites were Billy Idol, Oingo Boingo, The Fixx, Flock of Seagulls and others in the Punk/ New Wave genre' The music of Prince at the time transcended all types and styles. One of the reasons that some of it seems so cheesy and contrite now is that it was SOOOOOOOO big then. All the things that remind you of the 80's were iconic then. It was mainstream and it seems like a cliché' now. It got so popular that it became ridiculous. It's like the rappin' Granny commercial for Wendy's Hamburgers. It looks stupid now because EVERYONE was caught up in it (sadly, kind of like a bizarre purple macarena or something. Anyway, I hope this gave you all a little insight. Question: is it a positive review?

Ex Output:
yes


Ex Input:
Review: Alas, poor Hamlet. I knew him, dear reader, and let me tell thee, THIS VERSION SUCKS! I don't know who of all people put up the money for this flotsam, but I hope that they're proud of themselves. They took THE classic play and turned it into the most boring melodrama imaginable. This version is quite literally so bad, that not even the presence of a great thespian like Maximilian Schell in the title role can save it. This movie's only redeeming quality is that it made great fodder for "MST3K"; Mike, Servo and Crow had a lot of fun with this one.But either way, I'm sure that Shakespeare, had he been alive when they made this, would not have wanted his name associated with it. This "Hamlet" is not even so bad that's it good; it's just plain bad. Absolutely dreadful. Question: is it a positive review?

Ex Output:
no


Ex Input:
Review: This documentary makes you travel all around the globe. It contains rare and stunning sequels from the wilderness. It shows you how diversified and how fragile our planet can be. The polar bear's future is highlighted at the beginning and at the end of it. After all, its bleak future is closely linked with the consequences of global warming. This documentary is however a simplistic approach of such a serious environmental issue. It can nonetheless be easily seen by young children since it mainly remains descriptive. Scientists might well be disappointed as it is not a remake of Al Gore's documentary "An inconvenient truth" but frankly...what a description!!! A question may then arise: Isn't it worth preserving our world's beauty? Because this documentary proves that in 2007 such a beauty still exists despite the different pollutions. By living in towns and cities we tend to forget that we are part and parcel of this nature. All things considered this documentary reminds us that we own a common treasure called "EARTH". Question: is it a positive review?

Ex Output:

yes