In this task, you must classify if a given review is positive/negative, indicating your answer as P or N.

Ex Input:
it 's probably inevitable that the popular virtual reality genre ( " the matrix , " " existenz " ) would collide with the even more popular serial - killer genre ( " kiss the girls , " " se7en " ) .
the result should have been more interesting than " the cell .
"
as the movie opens , therapist catharine deane ( jennifer lopez ) treats a catatonic boy ( colton james ) by entering his mind through some sort of virtual reality technique that 's never fully explained .
after months of therapy sessions in a surreal desert , catharine has no success to report .
meanwhile , killer carl stargher ( vincent d'onofrio ) has claimed another victim .
his particular hobby is to kidnap young women , keep them in a glass cell overnight , and drown them .
he takes the corpse and soaks it in bleach , then suspends himself over the body and jerks off while watching a video tape of the drowning .
although carl 's been doing this for awhile , he 's recently become sloppy , and fbi agent peter novak ( vince vaughn ) is closing in fast .
not fast enough , though , to keep carl from sticking another woman ( tara subkoff ) in the cell or to catch him before he suffers a schizophrenic attack that leaves him in a coma .
from the videos in carl 's house , peter can see that the drowning cell is automated and will fill with water forty hours after the abduction .
to save the kidnapped girl , peter has to find the cell before the end of the day , and comatose carl 's not talking .
so off they go to catharine in the hope that she can go inside carl 's mind and find out where the cell is in time .
the focus of " the cell " in on the ornate interior of carl 's mind , but the universe director tarsem singh creates seems more an exercise in computer - generated spectacle than an exploration of the psychotic personality .
for the most part , it 's style without substance .
in his own mind , carl is a decadent emperor in flowing robes , ming the merciless , as well as a frightened boy ( jake thomas ) abused by his father .
all in all , the mind of a psycho killer turns out to be a strangely dull place , and i kept wishing i could fast - forward to the next development .
singh is best known for directing music videos , particularly rem 's " losing my religion , " and " the cell " seems very much like a really long , really slow mtv video with the sound deleted .
singer lopez seems to think she 's in a video as well ; she devotes more time to posing in elaborate costumes than she does to acting .
the premise had great promise .
the computer - generated world within carl 's mind could have been a bizarre , surreal universe governed by insanity and symbolism rather than logic .
the first room catharine enters in carl 's head shows this promise .
she finds a horse standing in center of the room ; suddenly , sheets of sharp - edged glass fall into the horse , dividing it into segments .
the panes of glass separate , pulling apart the pieces of the still - living horse .
this scene is twisted , disturbing , and thought - provoking , because the psychological importance of the horse and its fate is left to the viewer to ponder .
another element that should have been developed is the effect on catharine of merging with the mind of a psychopath .
their minds begin to bleed together at one point in the movie , and this should have provided an opportunity to discover the dark corners of catharine 's own psyche .
like sidney lumet 's " the offence " or michael mann 's " manhunter , " " the cell " could have explored how the madness of the killer brings out a repressed darkness in the investigator .
however , catharine 's character is hardly developed at all , and lopez has no depth to offer the role .
bottom line : do n't get trapped in this one .

Ex Output:
N

Ex Input:
"
the endurance : shackleton 's legendary antarctic expedition " in 1914 , as the great war descended upon europe , sir ernest shackleton began his third expedition to antarctica , this time to be the first to cross the ice - bound continent on foot .
28 men set sail on the brigantine endurance and they would not be heard from again for nearly two years .
director george butler , using film footage and photographs from the historic journey , tells their remarkable story in " the endurance : shackleton 's legendary antarctic expedition .
"
the expedition started out as a merely incredibly difficult quest to traverse , on foot , the vast wasteland of antarctica .
as the intrepid ship and crew entered the weddell sea , the entry to the cold , cruel continent , they did not plan on the dense pack ice bringing the voyage to an abrupt halt as the endurance became trapped within sight of land .
for months the ice thickened and compressed until the ship was crushed , stranding the men on the flow , propelling them away from their goal and , eventually , into their lifeboats for safety .
shackleton , faced with a desolate situation , made the decision to lead the three tiny boats to the relative safety of uninhabited elephant island .
once on this " safe " haven , shackleton next turned his sights to saving his crew and returning them to civilization .
he and five of his men leave the island in an open boat to make the 800 mile journey on the world 's roughest sea to get help from the nearest inhabited island of south georgia .
miraculously , the six land , after 17 days at sea , on the uninhabited side of the target island and are forced to trek across treacherous , snow covered mountains , covering 22 miles in just 36 hours .
this ordeal is followed by several attempts by shackleton to get back to elephant island to rescue the remaining crewmen .
in the end , he is successful and everyone made it back home alive , only to be swallowed up by the ravages of the war .
the title of this fascinating documentary , " the endurance , " is more than just the name of ship that carried the crew of brave men to the edge of the world .
it is also the description of the stamina and ability of every one of the men who survived 19-months of the toughest , most grueling conditions on the face of the earth .
the name of the film is a tribute to every member of the crew and to the ship that sheltered them for many month of frigid antarctic weather .
it also describes the focused mental state of shackleton who never gave up on himself or his men .
with astonishing foresight , shackleton brought australian cinematographer and photographer frank hurley along on the journey .
the filmed footage and photos are remarkable as they capture the ordeal of the men , day to day life , the affection all felt for their loyal sled dogs , the slow destruction of the endurance and the preparations to get off of the pack ice flow .
after the sinking of the ship , the remaining film stock , with the exception of a still camera and three rolls of film , had to be discarded so the continuing chronicle of the incredible journey gets less photo documentation as the ordeal plods on .
considering hurley was using relatively primitive photo technology in one of the world 's harshest environments and captured so much on film is a feat unto itself .
( hurley created his own account of the shackleton expedition in his 1919 documentary , " south , " an interesting companion piece for " the endurance .
"
if shackleton 's original idea , document his trek across the frigid southern continent , had been successful , it would have been considered a super human feat .
as you watch the story of " the endurance " unfold , you realize that the disastrous obstacles the sir ernest and his men faced and overcame were even greater accomplishments than the first intent .
( shackleton 's amazing 800-mile journey in an open boat is fodder for a rousing adventure story all by itself . )
there are a couple of minor nitpicks with this fine work , though .
actor liam neeson narrates the story , but his voice is too soft spoken and lilting for the dramatic tale .
the nature of the ordeal also concentrates most of the visual material , both film and photo , in the documentary 's first half .
as the crew 's adventure takes more drastic paths , hurley had less and less film stock available to chronicle the awesome events .
helmer butler and his team fill in the blanks , but the treasure of " the endurance , " its film footage , is mostly relegated to the early months of the expedition .
i ca n't think of a true - life adventure that shows , better , the triumph of man over seemingly insurmountable odds .
"
the endurance , " based on caroline alexander 's book , is an eye - opening documentary that goes where few men have gone before and , even more remarkably , all 28 survivors lived to tell about it .
i give it a b+ .

Ex Output:
P

Ex Input:
you do n't need to have seen the original " species " to appreciate how utterly lousy
" species ii " is .
with few exceptions , sequels tend to be worse than the films that spawned them , but the fact that " species ii " is a follow - up is n't the only reason
it 's so miserable .
it 's the predictable storyline , the cardboard characters , the banal dialogue , the failed attempts at humor , the revolting special effects , the gratuitous nudity ( all female , of course ) , the bad acting , and the bland direction .
the plot , simply geared at getting the alien species back on planet earth so that it can reak some more havoc , involves three astronauts landing on mars and inadvertently bringing some alien slime in a soil sample back aboard their shuttle .
the slime , well , sort of jumps out at them and the screen turns black .
that should have been the end of the movie right there .
back on terra firma , at least one of the crew is now a carrier of alien dna and , as you 'll remember if you saw the first movie , driven by a strong urge to procreate .
on a parallel track , government scientists have cloned a version of sil from the first film ( now called eve , again " played " by natasha henstridge ) and are keeping her around for some testing .
this , apparently , includes observing eve 's reaction to " the dukes of hazzard " tv show , which she appears to enjoy .
eve 's bio - rhythms go off the scale each time one of her kinfolk " mates , " which we are forced to witness in gross - out detail , but otherwise there does n't appear to be a whole lot of reason why henstridge is in this film , unless it was written into her contract ( let 's hope it cited one sequel and one sequel only ) .
eve finally breaks free of her confines -- and her bra -- for the finale , but the effects are so messy you ca n't really see what 's going on .
peter boyle is totally wasted as an institutionalized scientist who screams " i told 'em not to go !
"
at the top of his lungs , referring to the mars mission but more likely aimed at the makers of this piffle .
michael madsen reprises his role of press lennox ( so that he can enter high security areas , flash a badge and claim to be press , maybe ? ) , as does marg helgenberger as dr .
laura baker , the one subjecting eve to the tv reruns .
they 're both unbelievably wooden .
what 's a talented filmmaker like peter medak ( " the ruling class , " " the krays , " " let him have it " ) doing directing this tripe
, i wonder .
it 's an unfortunate trend ,
this : once - talented directors throwing in the towel and lending their names to unchallenging horror flicks like " species ii .
"
last year peter hyams gave us " the relic " ; no thanks necessary there .
and the first " species " was helmed by roger donaldson who , although certainly no genius behind the camera , had demonstrated much better judgment with his previous choice of projects .
is it just that there are no better offers out there ?
" species ii " is worthless . worse than that , it 's also exploitative , offensive , and insulting to the intelligence at every turn .
it 's not that there is n't anything positive to say about the film .
there is .
after 92 minutes , it ends .

Ex Output:
N