In this task, you will be shown an extract from a movie plot. You need to read the extract and create questions that can be answered from the extract. Once you create a question you also need to provide the correct answer for it. Write your answer like "Question: your question, Answer: your answer". The questions should be well-formed and grammatically correct. The questions should be completely answerable from the given passage and should not require any external knowledge. Subjective questions are not allowed. Short answers containing words that are present in the passage are preferred. Create questions that result in factoid answers.  A simple rule of thumb to decide whether a question is a factoid or not is to see if two different people with average reading/comprehension skills would come up with the same answer after reading the passage.

[Q]: Two teenagers come upon an apparently abandoned military installation. They take advantage of what appears to be a swimming pool to skinny dip. The teenagers are attacked by an unseen force and disappear under the water. A light activates in the main building and a silhouetted figure investigates the screams, but is too late to help.A determined but somewhat absent-minded insurance investigator named Maggie McKeown is dispatched to find the missing teenagers near Lost River Lake. She hires surly backwoods drunkard Paul Grogan to serve as her guide. They come upon the abandoned compound, which functioned as a fish hatchery before being militarized. They discover bizarre specimens in jars and indications of an occupant. Maggie locates the drainage switch for the outside pool and decides to empty it to search the bottom, but the moment she activates it a haggard and frantic man begins to panic and attacks her, attempting to stop the draining until he is subdued by Grogan. The two found a skeleton in the filtration trap of the empty pool, and learn it was filled with salt water. The man awakens and steals their jeep, but crashes it due to his disorientation, and is taken to Grogan's home where they spend the night. They take Grogan's raft down the river, where the man wakes up and tells them that the pool in the facility was filled with a school of piranhas, and that Maggie released them. They are skeptical until they hear a dog barking and they come across the corpse of Grogan's friend Jack, who has bled to death from an attack on a fishing dock.The man reveals himself to be Doctor Robert Hoak, lead scientist of a defunct Vietnam War project, Operation: Razorteeth, tasked with engineering a ravenous and prodigious strain of piranha that could endure the cold water of the North Vietnamese rivers and inhibit Viet Cong movement. The project was shut down when the war ended, but some of the mutant specimens survived, and Hoak tended to them to salvage his work. Grogan realizes that if the local dam is opened, the school will have access to the Lost River water park, and the nearby summer camp where his daughter is in attendance. They encounter a capsized canoe with a boy whose father has been killed by the fish. Hoak rescues the boy but suffers mortal injuries when the school attacks him; he dies before he can reveal how to kill them. Blood from Hoak's corpse causes the piranha to tear away the raft's lashings, and they barely reach shore. Grogan stops the dam attendant from opening the spillway and calls the military.A military team led by Colonel Waxman and former Razorteeth scientist Dr. Mengers feed poison into the upstream section, ignoring the protests that the fish survived the first attempt. When Grogan discovers that a tributary bypasses the dam, Waxman and Mengers quarantine them to prevent the agitated pair from alerting the media. After they escape, Waxman alerts law enforcement to capture them. The school attacks the summer camp during a swimming marathon, injuring and killing many children and a supervisor. Grogan's daughter escapes due to her fear of water, and aids her camp mates in escaping.The school continues downriver. Waxman and Mengers arrive at the water park to intercept Grogan and Maggie, but the piranha attack the resort and kill many vacationers and Waxman. Grogan and Maggie commandeer a speedboat and rush to the shuttered smelting plant at the narrowest point of the river. Remembering the empty facility pond, Grogan realizes the fish can survive in salt water; if the school passes the delta, they will reach the ocean and spread over the world. He intends to open the smelting refuse tanks, hoping the industrial waste will kill the fish. They arrive at the plant ahead of the fish, but the elevated water level has submerged the control office, and Grogan must go underwater; he ties a rope around his waist and instructs Maggie to count to 100 before pulling him out. Grogan struggles to move the rusted valve wheel when the school arrives and attacks him. The assault hyperadrenalizes him, and he manages to open the valves just as Maggie pulls him to safety. Maggie takes Grogan back to the water park, where a massive MEDEVAC is tending to the victims; his injuries are severe and he is seen in a catatonic state.Mengers gives an on-site television interview, providing a sanitized version of events and downplaying the existence of piranha. Her voice is heard carrying out over a radio on the shore of a West Coast beach. As she says "there's nothing left to fear", the piranha's characteristic trilling sound drowns out the waves on a beach.
[A]: Question: What Grogan struggles to move?, Answer: Rusted valve wheel


[Q]: After seven years, Tricia, a pregnant woman who lives alone in the Los Angeles valley, is finally ready to accept that her missing husband Daniel will not return. As she prepares to declare him dead in absentia, her sister Callie, a former addict, comes to stay with her. Together, they work to obtain Daniel's death certificate and find a new apartment for Tricia. As the date approaches, Tricia has terrifying nightmares and hallucinations about Daniel that her psychiatrist interprets as stress and guilt. While jogging, Callie runs into a gaunt man in a tunnel who seems shocked that she can see him. He begs her to contact his son, but she runs off. Later, she returns with food and leaves it in the tunnel.When Callie discovers a pile of small metal objects on their doorstop, she assumes they were left there by the man in the tunnel, and she places them at the tunnel entrance. A man walking by advises her not to do so and deposits a trash bag in the same spot. She later finds the pile of metal objects on her bed. Detective Mallory, who has been investigating Daniel's disappearance, responds to the call and chastises the women for leaving their door unlocked in a dangerous neighborhood. Callie secretly relapses into drug use, and Tricia signs her husband's death certificate. As Tricia steps out on a date with Mallory, a bloody and barefoot Daniel suddenly appears in front of their apartment and collapses.At the hospital, doctors diagnose Daniel as severely malnourished, dehydrated, and physically abused. Daniel seems surprised that others can see him and can only explain that he was "underneath". Tricia contacts his parents, and he returns home, where he acts strangely and urinates in fear of the sight of the tunnel. Mallory and his partner, Detective Lonergan, attempt to interrogate Daniel, but he does not respond. Later, Tricia breaks down and strikes Daniel, begging him to explain his disappearance, but he still does not respond. Mallory comes by, and he and Tricia talk in his car. Mallory pledges his devotion to her, and they kiss.At the same time, Daniel surprises Callie in her room and explains that she made a trade with an insectoid creature that hides in the walls. Callie investigates strange movement by the bathroom and is knocked unconscious. When she wakes, she sees a creature pull Daniel into the tunnel and through the tunnel's solid walls. Lonergan interrogates Callie, and she lies about her drug use. When Tricia discovers Callie's stash, she accuses Callie of hallucinating the entire incident. Callie shows Tricia information she found on the Internet about missing people, including Walter Lambert, the man she saw in the tunnel; Lambert's son claims that he was taken by monsters.Daniel's parents arrive, and Tricia tells them that Daniel has once again disappeared. The police discover Walter Lambert's bloody body at the entrance to the tunnel, and the man Callie saw earlier is revealed to be his son, Jamie. The police accuse Jamie of kidnapping local pets, and he implies that he has been offering them as sacrifices to recover his father. Tricia and Callie are attacked by the creature, and it kidnaps Tricia. Callie files a missing person report, then returns to the tunnel to offer a trade. She hears screams and sees the forms of people through the walls. Tricia's fetus is pushed through the wall, and Callie attempts to run. She is captured by the creature(s) before she can escape the tunnel.Mallory finds an envelope Callie left for him that contains her research. Lonergan assures him that they will keep the cases open indefinitely. He speculates that Jamie, whom he suspects to be a serial killer, may have killed Tricia and Callie, but Mallory chooses to believe that Callie ran away and Tricia is happily living off the land somewhere. While Mallory puts up posters, he sees an apparition of Callie standing in the tunnel, but when he investigates more closely, she is gone. As he walks away, Callie watches him from the tunnel as the creature's limb rests on her shoulder.
[A]: Question: Who is the man Callie saw in the tunnel?, Answer: Walter Lambert


[Q]: The Shadow battles a villain known as The Black Tiger, who has the power to make himself invisible and is attempting world domination.
[A]:
Question: Who reformed and trained Lamont Cranston to harness his mental powers?, Answer: <No Answer>