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: 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?

Ex Output:
yes


Ex Input:
Review: Vertigo co-stars Stewart (in his last turn as a romantic lead) and Novak elevate this, Stewart's other "Christmas movie," movie to above mid-level entertainment. The chemistry between the two stars makes for a fairly moving experience and further revelation can be gleaned from the movie if witchcraft is seen as a metaphor for the private pain that hampers many people's relationships. All in all, a nice diversion with legendary stars, 7/10. Question: is it a positive review?

Ex Output:
yes


Ex Input:
Review: I really wanted to like this movie, but ended up bored and incredulous. The first shot is a camera feed from a robot traveling towards a bomb and is, naturally, shaky. But then the rest of the movie stays in shakycam mode, even during quiet conversational moments, to the point of ridiculousness. Have the rental houses run out of tripods and Steadicams? The fact that it was shot on 16mm doesn't help, as the entire movie is grainy as well as shaky. For all the effort Bigelow put into accurate vehicles and equipment, there are enough glaring errors and inconsistencies that they undermine the movie's credibility. - A car would not erupt in flames after a single shot, and once engulfed would not be extinguished by a small hand-held extinguisher. - A single Humvee would not be driving around Baghdad in 2004, but would be backed up by other vehicles in case of breakdown or attack. - It would be exceptionally unlikely to be able to hit a running insurgent at long range, where the bullet is clearly taking over a second to reach the target. - I believe bombs were brought to designated disposal areas on or near a base, not some random spot in the middle of the desert. - The oil tanker attack is stated to have occurred in the Green Zone, a highly secure area that experienced very few attacks from within. The zone is mostly offices and palaces with few residences, yet it is portrayed as a dangerous warren of dark alleys and lurking insurgents. Oddly, James never gets in trouble for the ridiculous tactic of ordering his two companions to each take an alley by themselves, thus setting up the attempted kidnapping. - Speaking of which, the 3-man team is always depicted clearing buildings, chasing insurgents etc. on their own, even when there are clearly dozens of soldiers right there. - How many hours does the team have to stare at a dead insurgent hanging out a window to figure out he's not faking it?There were no establishing shots to show the viewer what the size and layout of the base was or where Baghdad was in relation. I had no idea who the EOD team reported to, nor were any other characters fleshed out. These are things the characters would know, so we should too.Many of the "surprises" and scenes are perfectly predictable. Yes, it's obvious that the psychiatrist colonel will get into trouble with the Iraqis he's trying to move along, that the choice of cereals back home will be overwhelming, and that a driver you kidnapped will not wait for you when you leave the vehicle.Finally, there was an almost complete lack of character development. Renner's character from the beginning has a troubled relationship at home, is reckless and addicted to adrenalin. He's exactly the same at the end of the movie. What's the point?If this is indeed the best so far of the Iraqi war movies, it's a sorry bunch. Just based on the half hour I saw of it, I'd recommend Generation Kill on HBO instead. Question: is it a positive review?

Ex Output:

no