Task: Question Answering
Input (English): Context: This article's plot summary may be too long or excessively detailed. Please help improve it by removing unnecessary details and making it more concise. (March 2010) (Learn how and when to remove this template message) On March 17, 994 A.D., The Leprechaun is a thousand years old. Since that is his birthday, he can choose any woman to be his bride. He picks a young girl of the O'Day family. The Leprechaun describes the girl he has chosen to O'Day, but when O'Day sees that the girl is in fact his daughter, he intervenes with "God bless you, my child" therefore denying the Leprechaun his bride, as the creature can marry any girl who sneezes three times, provided no one says "God bless you." The Leprechaun captures, tortures and tells O'Day that he will marry his descendant in a thousand years time on St Patrick's Day, before he kills O'Day, whose corpse is then discovered by his daughter. One thousand years later, St Patrick's Day 1994, in modern-day Los Angeles, the Leprechaun has found a petulant sixteen-year-old girl named Bridget Callum, a descendant of the O'Day bloodline, who has got into a fight with her boyfriend, Cody Ingalls. Cody, whose legal guardian is his uncle, Morty, frequently has to break their dates in order to support Morty, an alcoholic scam artist. The Leprechaun steals some whiskey and a gold tooth from a homeless man and a gold ring off the finger of Tim Streer, a talent agent, who believes that the little man is some kind of performer. After all of this, he follows Bridget to her house, where a boy named Ian attempts to persuade her into letting him in; she refuses with a swift elbow to his ribs. The Leprechaun then creates an illusion that fools Ian into believing that Bridget is asking him to kiss her big breasts, while in actuality, they are a pair of lawnmower blades that start up after Ian shoves his face into them. Shortly afterwards, Cody knocks on the door and apologizes, offering flowers, which causes Bridget to sneeze all over his shirt. The third time she sneezes, Cody begins to say "God bless you," but is unable to complete the blessing when the Leprechaun attempts to strangle him with a telephone cord. After a struggle, the Leprechaun grabs Bridget and disappears, losing one of his gold coins, which Cody soon finds. The police soon arrive, find Bridget missing, Ian dead, and a note from Cody at the scene, leading them to get an arrest warrant out for him. Cody returns to Morty's house and tells him what happened; Morty says he's crazy until the Leprechaun breaks into the house and they barely escape. Morty and Cody then go to a bar, which is filled with little people dressed as leprechauns, celebrating St. Patrick's Day. While there, Cody is given a piece of chocolate in a gold wrapper by one of the bar's patrons (Tony Cox). The Leprechaun appears and Morty challenges him to a drinking contest in honor of his wedding. While the Leprechaun downs whiskey, Morty is actually drinking soda and water. The Leprechaun eventually becomes extremely drunk, so much to the point he can barely speak properly or use his magic. He distracts Morty and Cody by turning on a jukebox with his powers, leading him to bash Morty in the head with a bottle to get away. He goes to a coffee shop, where he sobers up, and takes the time to murder a waiter (Michael McDonald) who was making jokes about his size and speech. Upon being asked for payment for the coffee, the leprechaun thinks the waiter wants to take his gold and kills him. Meanwhile, Cody and Morty break into the go-kart racetrack that Ian worked at since the office contains a huge safe on wheels made of wrought iron, the only thing that can harm the Leprechaun. Cody traps the Leprechaun inside, but Morty takes advantage of the opportunity to claim three wishes and locks Cody in a store room. His first is for the Leprechaun's pot of 
 Question: What is the only thing that can kill the Leprechaun?
Output (English): iron