Problem: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What remains a mystery? Title: The Maltese Falcon Movie plot: In San Francisco, private investigator Sam Spade (Ricardo Cortez) and his partner Miles Archer (Walter Long) are approached by Ruth Wonderly (Bebe Daniels) to follow a man, Floyd Thursby, who allegedly ran off with her younger sister. The two accept the assignment because the money is good, even though they disbelieve her story. Late that night, police detective Tom Polhaus (J. Farrell MacDonald) informs Spade that Archer has been shot and killed while tailing Thursby, but Spade turns down the opportunity to examine the body at the scene. As he's leaving, he has a brief conversation in Chinese with a man loitering in a doorway. Later, Polhaus and his superior, Lt. Dundy (Robert Elliott), visit Spade at his apartment. Thursby has been killed, and they want to know where Spade's been in the last few hours they suspect him of killing Thursby to avenge the death of his partner. With no real evidence against Spade, they leave. The next day, Spade calls on Ruth Wonderly in an attempt to find out her real reasons for hiring them. She uses several different ploys to keep Spade on the case in spite of the two murders, but Spade sees through them. Despite this, he gets only a little information from her: Thursby was her accomplice whom she no longer trusted, and she feels she's in danger but she won't tell Spade what she and Thursby were trying to pull off. Frustrated, Spade begins to leave, but then thinks better of it. He takes $500 from Wonderly, supposedly the last of her money, and goes. At the office, Spade tells his secretary, Effie (Una Merkel) to have Archer's name removed from the door, and he receives a visit from a Dr. Joel Cairo (Otto Matieson), who offers Spade $5,000 if he can retrieve an enamel figurine of a black bird that he is trying to recover for the "rightful owner". Not knowing anything about this statuette, Spade plays along, overpowering Cairo when he pulls a gun and attempts to frisk him and search the office. Nevertheless, he agrees to try to recover the statuette. That night, at his...

A: Floyd

Problem: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What is the name of Martins next book? Title: The Third Man Movie plot: Sights of Vienna, Austria, flash across the screen as an Englishman's voice (Carol Reed) describes the racketeer trade in the post-World War II era. He describes that many amateurs have tried to get involved in this career, but he implies that they always end up dead. Meanwhile, the city is quartered into sectors policed by occupying forces -- the English, the Russians, the Americans and the French -- though they barely can handle the criminal element and don't even speak the same language. The city is devastated ("bombed about a bit," says the narrator), covered in jagged rubble. He begins to tell the story of an American coming to Vienna named Holly Martins, who has come to accept a job from an old friend.Holly Martins (Joseph Cotten) gets off his train and is surprised that his friend, Harry Lime, isn't at the station to meet him. Holly goes to Lime's flat, but the building porter (Paul Horbiger), through extremely broken English, tells him that he just missed Lime's friends leaving with a coffin. The porter says that Harry was killed, hit by a truck right in front of the building.Martins goes to a massive graveyard and finds a funeral service. An Englishman (Trevor Howard) hovering nearby informs Holly it is Harry's funeral. Standing by the grave are two middle-aged men, both of whom eye Holly suspiciously. Also in attendance is a pretty woman (Alida Valli) who doesn't notice him. After the funeral, Martins begins to walk back into town, and the Englishman offers him a ride.The stranger introduces himself as Major Calloway, a police officer in the British sector of Vienna, and offers to buy him a drink. Holly agrees and proceeds to drink while reminiscing about Harry. It is revealed that Holly is an author of pulp Western novellas. As he talks about his old friend, Calloway says that it's better that Lime is dead, since he was a murderer and a racketeer. Holly takes umbrage at Calloway's suggestion and reaches to punch him, but he's quickly socked in the face by fellow English soldier Sergeant Paine...

A: The Third Man, "a murder story"

Problem: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Who kills Dr Heffner ? Title: Saw VII Movie plot: The movie opens with a glass cage which contents is in full view of confused onlookers. Two men who apparently know each other wake up chained to either end of a table saw inside the cage. Suddenly, a girl is unveiled; suspended above the two men. The puppet, "Billy" rides in on a trike and says they each have to decide whether the other man will die, so that the girl that has been dating both guys will live, or choose to not kill each other and let the girl die. One guy starts to push the saw to the other end, and the other guy pushes back. The girl then tells one man she loves him and the jilted man starts winning. She then tells the one who is about to 'win' that she loves him but he doesn't believe her after she had just said she had loved the other guy a moment before. Consequently, they agree to let her die instead and she is sawn in half, spewing blood out of her mouth as her intestines spill on the floor.Detective Mark Hoffman (Costas Mandylor) escapes from a trap which was attached to his head. He just misses a hiding Jill Tuck (Betsy Russell), and instead focuses on stitching himself up. As Jigsaw's ex-wife and with enough familiarity of Hoffman's character, Jill knows that Hoffman will not give up hunting her, and begins making her own arrangements. Heading to the police and requesting a detective not previously involved in the Jigsaw case, Gibson (Chad Donella), she tells him that she has important information and evidence that she will give up only if she gets immunity. Gibson immediately agrees to this.Bobby Degen (Sean Patrick Flannery) is a survivor of Jigsaw/John (Tobin Bell), and he has written a self-help book called S.U.R.V.I.V.E. which is based on his experience of escaping a Jigsaw trap. He pierced his pectoral muscles with hooks and hoisted himself into the air in order to escape. He is being interviewed and with him are his best friend Cale (Dean Armstrong), his lawyer Suzanne, his public relations woman Nina (Naomi Snieckus), and wife Joyce (Gina Holden). He and his handlers argue...

A:
Hoffman