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".

Example Input: Review: While originally reluctant to jump on the bandwagon of watching "Lost", I accidentally caught one episode at the beginning of season 1the one with the polar-bearand it has had my undivided attention ever since. The show, that is. Not the polar bear. So bear (heh) with me while I throw out as much rambling, semi-coherent praise as I can muster."Lost" takes a simple idea of a passenger flight full of people crashing onto a desert island, and gradually adds extraordinary depth to its premise by exploring each character deeply and unflinchinglywhat drives them, who are they? Where did they come from? It soon becomes clear that the island upon which they are stranded acts as a common denominator for many things in their lives, whether they're running away from something (Sawyer and Kate among others) or getting in touch with spirituality (Locke, Claire). But "Lost" also zooms in on the island itself and the mysterious horrors that it houses... and they all seem to be strangely connected.While television actors are not exactly known for their subtlety or dazzling acting abilities, most of the cast of "Lost" are, in truth, spectacular actors for their respective parts, projecting heart and humour in their performances. There's also a multitude of eyecandy, but not generally of the plastic Hollywood kind as most TV shows. The characters all feel very real and they are extremely compelling to watch. Their interactions rarely fall prey to predictable sappiness, petty arguments or cheesy melodrama (although they are annoyingly secretive)  these people are first and foremost trying to survive and whatever relationship appears is treated secondary to action. The realism of these characters facilitate an already well-sculptured plot. About this plot... Imagine a tree as the template plot, then the branches as subplots (in this case, one branch for every character)  well, Lost adds twigs to each branch and then tiny twigs to those twigs as other story lines. If you're a brother/sister to one of the main characters in the flashbacks, you will get your own storyline. If you're a DOG you will have your own storyline. Unless the writers manage to weave them all together into some glorious culmination in the end, they are setting themselves up. I am more than a little worried there will be some disappointing cop-out to this show, as I'm sure most people are.But assuming the writers do pull this off, "Lost" is possibly the best show ever to hit television.9/10 Question: is it a positive review?
Example Output: yes

Example Input: Review: Honestly, I find this film almost too depressing for my own good. It is VERY depressing until pretty much the very end. There is no way I can justify passing judgement to any character who did things I didn't like (well, except for the disgusting character played by Fredrick Forrest). But it's still so frustrating to see people behaving this way, putting up walls around themselves when just a word or so could break the ice and promote healing.A horrible tragedy strikes a Montana family. They believe they've lost one son, but it turns out they've lost 2. The key is, if they just communicate and face their grief together, they won't end up losing their second son permanently.But they just can't. Something is blocking this family from sharing their sorrows. Some family retreat into silence and resentment while certain others point fingers of blame (and then go ahead and cheat on their poor pregnant wife by seducing the pretty girlfriend of the deceased...that Andy character truly is a snake!) The only member of the family that isn't threatening Arnold in some way is his Grandpa (Wilford Brimley). Grandpa seems to be able to speak to the boy without judgements or even kid gloves. He seems to know what the child is thinking about even though Arnold isn't saying much these days. It is truly a blessing for the poor kid to have that one someone he can turn to. No one else seems to grasp the fact that Arnold might be in shock, in denial, or that his way of grieving may not be the same style, or at the same speed, as they would expect. It's so easy to judge and to be angry and to feel someone is "made of stone" just because they don't grieve in a way we believe they ought.The story is very quiet and naturalistic. You're not going to get some spoon-fed narration or some Hollywood feel-good resolution. I was very concerned by the fact that this child was so burdened with guilt that he felt it necessary to hitchhike several hundred miles to apologize to that piggy Andy's wife, for something he should not blame himself for. Arnold may have accidentally killed his brother, but nobody is responsible for the end of that marriage, which apparently was a lousy one anyway, except for the two people in the marriage. It's only dumb luck Arnold didn't get into the car with a pedophile or a murderer.Robert Duvall and Glenn Close are frustratingly effective as the parents who somehow cannot find it in themselves to communicate with their son, to find out what Arnold is going through. Jason Presson, whom I've not seen anywhere else except for a childhood favorite called EXPLORERS and a creepy ghost story called THE LADY IN WHITE, did an incredible job as Arnold, a great performance from a child actor.Aside from being somewhat slow at times, THE STONE BOY is an excellent, and very depressing movie. Question: is it a positive review?
Example Output: yes

Example Input: Review: I chose to see this movie because it got a good score here on IMDb. But a lot of people either have really poor taste or someone's been fixing the score.Either way it was a real disappointment. The movie is exactly as stupid and far fetched as the title would suggest. There really is no reason to give a summary of the plot - but here goes: it felt like someone had been thinking: "Wouldn't it be cool to make a movie where there were snakes on a plane? And then the snakes for some reason would go crazy and start biting and stuff?!?" And that's about it! The plot is thin and unoriginal. The snakes are bad CGI (but it makes sense to cut corners on a movie that no one in their right mind will recommend to anyone!). The acting is poor, and all people are unbelievable stereo types.To sum it up: It's one of the worst movies I've ever seen - stay away! Question: is it a negative review?
Example Output:
yes