Question: Q: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What must Mark do to unlock the spike filled mask? Title: Saw II Movie plot: Informant Michael Marks awakens in a room with a spike-filled mask locked to his neck, a video tape informs him that in order to unlock the device, he must cut into his eye to obtain the key, which has been sealed behind it. He sets off the timer and finds the scalpel, but cannot bring himself to retrieve the key and is killed after 60 seconds when the mask closes. At the scene of Marks' game, Detective Allison Kerry finds a message for her former partner, Eric Matthews, and calls him in. Despite not wanting to be involved with the case, already dealing with a divorce and estrangement from his son Daniel, Eric reluctantly joins Kerry and Sergeant Rigg in leading a SWAT team to the factory which produced the lock from Marks' trap. There they find and apprehend John Kramer, the Jigsaw Killer, who is weak from cancer. He indicates several computer monitors showing eight people trapped in a house; among them are Amanda Young, the only known survivor, and Daniel. A nerve agent filling the house will kill them within two hours, but Kramer assures Eric that following his own game, simply sitting and chatting with Kramer, will see Daniel returned to him unharmed. At Kerry's urging, Eric agrees in order to buy time for the tech team to arrive and trace the video signal. The victims are informed by microcassette recorder that antidotes are hidden throughout the house; one is in the room's safe, and a cryptic clue is provided. Xavier ignores a warning note and uses a key on the door, which fires a bullet through the peephole and Gus' eye, killing him. They search the house for more antidotes after the room lets them out, with no success: Obi, who is revealed by tape to have helped with the abductions, is forced into a furnace to obtain two antidotes inside, but inadvertently activates the trap and is burned to death before the others can save him; In the next room, Xavier throws Amanda into a syringe-filled pit intended for himself, and though she is able to retrieve the key, he is unable to unlock the steel door behind...
A: He must cut into his eye to obtain the key.

Q: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Who do the men believe killed the dragon? Title: George and the Dragon Movie plot: George (James Purefoy), a knight returned from the Crusades, wishes to retire from soldiering, find a wife, and settle on "an acre of land with two head of cattle." To conclude the transaction, he agrees to help the land's owner, King Edgaar (Simon Callow), whose daughter Princess Lunna (Piper Perabo) has disappeared. Also in search of the princess are Garth (Patrick Swayze), betrothed of the unwilling princess, and the mercenary El Cabillo, a title which passes through different men, the first of which is played by an uncredited Val Kilmer. The princess has been kidnapped by a female dragon, which lays an egg and then apparently dies a few days later. Rather than escaping, the princess decides to guard the egg, which she believes holds the last dragon on earth. She names the unhatched dragon "Smite". George's father Sir Robert (Paul Freeman), a previous friend of King Edgaar's and an amputee following his own battle with the mother dragon, gives his son George a "dragon horn", which "sounds a note only a dragon can hear". When George encounters the princess, he attempts to destroy the egg, but she knocks him unconscious each time he tries. In company with their companions, they transport the egg by wagon back to her father. Along the way they stop at a convent; Lunna's cousin is a nun there, and one of the friars is an old friend of George. The princess' betrothed, Garth, catches up with them at the convent, and she says she will not marry him because she does not love him. Garth kidnaps her to force her to marry him; she is part of his plan to take over the kingdom. Mercenaries arrive, led by El Cabillo, who then reveals himself to the group as Tarik (Michael Clarke Duncan), a Moor who had been a close friend of George during the Crusade. El Cabillo's men revolt against him, wishing to capture the Princess and claim the reward themselves. While they are fighting, the baby dragon hatches, the monk Elmendorf is killed saving the Princess from a flying spear, and King Edgaar's men and Sir Robert's men arrive...
A: George

Q: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What does the team destroy? Title: The Darkest Hour Movie plot: Americans Ben and Sean (Max Minghella and Emile Hirsch) travel to Moscow to sell their social networking/party locating software. As they approach the airport the plane short circuits due to an electrical storm but regains power. They find their Swedish business partner, Skyler (Joel Kinnaman), has betrayed them and already made a deal with the Russians, using a knockoff application. They go to a nightclub and meet Natalie (Olivia Thirlby), an American, and her Australian friend Anne (Rachel Taylor). The lights go out in the club and everyone heads outside. There, they witness what appears to be an aurora. Balls of light fall from the sky and then fade away. When a policeman investigates he is disintegrated. The invisible entities begin hunting and disintegrating people, sending them into a panic. Ben, Sean, Natalie, Anne, and now Skyler hide in the club's storeroom for seven days. With most of their food gone, the group plans to go to the American Embassy. They find the city full of scorched cars and cinders, but empty of people, except for a wary old woman who warns them of "the ghosts". Ben and Sean search for supplies in a police car near Red Square while the others hide in the nearby GUM department store shopping mall. While they are searching the car, a barking dog discovers and fatally confronts an alien, but the dog is disintegrated. Ben and Sean successfully hide under the car as the alien moves closer, causing the car's lights and siren to turn on. The alien moves on and the men run to the mall. Sean realizes that light bulbs give the aliens away. The group takes shelter in one of the mall stores. Sean and Natalie go to look for clothes and almost run into an alien who can't see them through a glass wall. Sean theorises that the aliens can only see their electrical charge, but not through glass. The group finds the American Embassy gutted and lifeless. All except Skyler go to the roof to get an aerial view. They find a logbook telling them that the invasion is worldwide. They also find a radio...
A:
Answer: An alien