Question: Generate a question that has the following answer: Petroleum for the following movie plot: All remaining reserves of petroleum have finally run out; forcing people to ration the few remaining containers of gasoline left on the earth against mercenaries and warlords. Straker and his men (accompanied by his daughter Corlie - played by Annie McEnroe) find a vast supply of diesel fuel in a compound once thought to be radioactive. When Corlie refuses to execute the previous owners, she runs away from base camp. Hunter (Michael Beck), on his amazing (possibly ex-future-military) motorcycle, rescues the girl and takes her to his farm. After keeping her on the farm on a temporary basis, Hunter sends her off to live in a walled city (known in-film as Clearwater Farm) governed by a strict old-fashioned democracy (similar to the Quakers) where she is quickly accepted by the community. However, she is soon discovered by the mercenaries commanded by her father, Colonel Straker (James Wainwright), who moves to attack the Clearwater community. In the chaos that ensues, Corlie manages to escape back to Hunter's remote hideout. Straker terrorises the residents of Clearwater, taking their weapons, medicines, and other supplies and handing the women over to his men. Within a short time, one of the residents of Clearwater betrays the Clearwater mechanic/fabricator, Rusty, who knows the secret location of Hunter's hideout. Straker & Co. use torture to get the information out of Rusty, then move in to attack Hunter's base and recapture Corlie. Hunter and Corlie escape on his bike, Straker, in a minor rage, plows through Hunter's place with the truck. Hunter takes Corlie back to the Clearwater people and asks Rusty to build him an armored car to attack Straker's "battle truck". While Rusty and Hunter and a few others are thus occupied, the traitor who betrayed Corlie before knocks her out, puts her in a wagon and heads out to deliver her back to Straker. Hunter tries to stop him, but the traitor sets an ambush for him and wounds him with a crossbow. Believing that he has killed Hunter, he appears at Straker's HQ with...
Answer: What reserves have finally run out?

Question: Generate a question that has the following answer: Toby. for the following movie plot: The film begins at a fashion show, where Chloe Keene (Jessica Alba) takes the catwalk. She returns home to her boyfriend Toby (Oliver Milburn) and tells him what a great time she had in New York. The phone rings, but no one is on the other end, and she tells her friend she will change her number. After this, she goes to a shoot, where she meets her other boyfriend, Ned (Gary Love), who offers to take her out to a reunion of his former band. She goes home, and lies to Toby that she will be visiting someone in Brighton.Chloe falls asleep in the car due to pills she has taken, and wakes up when she arrives at the reunion. She gets a phonecall from a stalker with a strange voice, a different one to the one that called earlier. At the reunion, she meets Stan (Iain Glen), his wife Rachel (Jeanne Tripplehorn), his deaf daughter Theresa (Mischa Barton), and his brother Gordon (Ewen Bremner), who films the party. While they are having lunch, Ned's wife Eve (Gina Bellman) arrives, and is rude to her, causing her to cut her hand on a glass. Eve tells her that she wants her to bleed to death,Chloe goes outside, and later on, Stan comes to find her. He tells her that everyone else has gone, but she can stay the night. While she is in the bath, Rachel enters and asks her what she thinks during photoshoots. Chloe tells her that she just pretends during them. When she gets out of the bath, she finds that Graham has put the handcuffs Ned gave her on the bed. She goes to bed, and hears a noise outside. When she goes to investigate, Stan takes her back into the bedroom and drugs her, so she falls asleep.She wakes up again, and calls her friend, who hangs up on her. She decides to go downstairs, and sees Gordon watching the tapes of earlier in the evening. When he goes to bed, she snatches one and starts to watch it, seeing herself being sexually assaulted. Someone attempts to open the door, so she escapes through the window and gets outside, where she faints after seeing Stan in the car.She wakes up in the basement, where Stan...
Answer: Who is the other stalker?

Question: Generate a question that has the following answer: A rock for the following movie plot: In December 1974, the crew of the cancelled Apollo 18 mission is informed that it will now proceed as a top secret Department of Defense (DoD) mission disguised as a satellite launch. Commander Nathan Walker, Lieutenant Colonel John Grey, and Captain Ben Anderson are launched toward the Moon to place detectors to alert the United States of any impending ICBM attacks from the USSR. Grey remains in orbit aboard the Freedom command module while Walker and Anderson land on the moon in the lunar module Liberty. While planting one of the detectors, the pair take moon rock samples. After returning to Liberty, the pair hear noises outside and a camera captures a small rock moving nearby. Houston claims the noises are interference from the ICBM detectors. Anderson finds a rock sample on the floor of Liberty despite having secured the samples. During further lunar exploration they discover footprints that lead them to a bloodstained, functioning Soviet LK lander, and a dead cosmonaut in a nearby crater. Walker queries Houston about the Soviet presence, but he is told only to continue with the mission. The following day the pair find that the flag they had planted is missing. Their mission complete, the crew prepares to leave, but the launch is aborted when Liberty suffers violent shaking. An inspection reveals extensive damage to Liberty and non-human tracks that Walker cites as evidence of extraterrestrial life. Walker feels something moving inside his spacesuit and is horrified as a spider-like creature crawls across the inside of his helmet. Walker disappears from view and Anderson finds him unconscious outside of Liberty. Walker later denies the events. A wound is discovered on Walker's chest; Anderson removes a moon rock embedded within him. The pair find themselves unable to contact Houston or Grey due to increased levels of interference from an unknown source. Anderson speculates that the true intention of the ICBM warning devices is to monitor the aliens, and that the devices are the source of the interference,...
Answer:
What sample does Anderson finds on the floor of Liberty despite having secured the samples?