input: Please answer the following: Generate a question about the following movie plot: Tina Gray, a teenager, walks through a boiler room dressed in a nightgown. She is stalked and attacked by a disfigured man wearing a blade-fixed glove. She awakens from the nightmare, but her mother points out four mysterious slashes in her gown. The following morning, Tina is consoled by her friend Nancy and her boyfriend, Glen. Later, Nancy and Glen sleepover with Tina following her mother's out-of-town departure. The sleepover is interrupted by Tina's boyfriend Rod, who tries to have sex to reconcile after arguing. Falling asleep, she sees the man and runs. Awakened by Tina's thrashing, Rod witnesses her being fatally slashed by an unseen force. He flees as Nancy and Glen find Tina, mistakenly blaming Rod. Nancy tells her father, Lieutenant Don Thompson, of Tina's death. The next day, Rod proclaims innocence to Nancy, but Don arrests him. At school, Nancy falls asleep in class and finds the man, calling himself Freddy Krueger, chasing her in the boiler room. Nancy burns her arm on a pipe and awakens in the middle of class, excusing herself. She notices the burn mark on her arm and is concerned. At home, Nancy falls asleep in the bathtub and nearly gets drowned by Freddy. Nancy goes to Rod, who tells her what happened to Tina, and Nancy believes Freddy is responsible for Tina's death. Nancy has Glen watch over her as she falls asleep. She tries to find Freddy and sees him preparing to kill Rod. He turns his attention on her; she runs and wakes up when her alarm clock goes off. Nancy and Glen go to the jail and discover Rod has been hanged in his cell by his bed sheet in an apparent suicide. At Rod's funeral, Nancy's parents become worried when she describes the man in her dreams. Her mother, Marge, takes her to a dream clinic. In her dream, Nancy is attacked again and grabs Freddy's hat. When the staff wake her up, she has a gash in her arm and she somehow has Freddy's hat with her. At home, Marge bars the windows and begins drinking heavily. Eventually, she tells Nancy that Freddy was a child murderer...
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output: Who grabs Freddy's hat?

Please answer this: Generate a question about the following movie plot: The film tells the story of the experiences of Major Syrtis during the first Christmas on a newly colonized Mars. The main character, Major Syrtis (played by Steven Drozd), is trying to organise a Christmas pageant to celebrate the birth of the first colonist baby. Coyne explains that this birth is also special for other reasons, Fortunately, Major Syrtis finds an unlikely ally in Coyne's strange and mysterious character, a "Martian that lands, but the Martian isn't really perceived as a Martian. People just sort of think he's another crazy guy who's flipped and turned himself green. They can't find a quick replacement for Santa so they just use this Martian guy. So the Martian guy becomes the Martian and Santa Claus at the same time."
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Answer: Who does the martian become?

input question: Generate a question about the following movie plot: Dr. Martin Harris (Liam Neeson) and his wife Liz (January Jones) arrive in Berlin for a biotechnology summit. At the hotel, Martin realizes he left his briefcase at the airport and takes a taxi to retrieve it. On the way, the taxi is involved in an accident and crashes into the Spree, knocking Martin unconscious. The driver, Gina (Diane Kruger), rescues him and flees the scene, as she is an illegal immigrant from Bosnia. Martin regains consciousness at a hospital after having been in a coma for four days. When Martin returns to the hotel, he discovers Liz with another man, and she claims to not know him. Martin phones a colleague in the States, Prof. Rodney Cole (Frank Langella) but reaches only his voice mail. Aboard a train, Martin writes down his schedule for the next day by memory. Martin visits the office of Prof. Leo Bressler (Sebastian Koch), whom he is scheduled to meet, but sees the impostor, "Martin B" (Aidan Quinn), already there. As Martin attempts to prove his identity, Martin B shows him his ID and family photo, both of which have the impostor's face. Overwhelmed by the identity crisis, Martin falls unconscious, then finds himself back at the hospital. Smith (Olivier Schneider(fr)), an assassin sent to target Martin, kills a nurse, Gretchen Erfurt (Eva Lobau), but Martin escapes. He seeks help from Erfurt's friend, private investigator and former Stasi agent Ernst Jurgen (Bruno Ganz). Martin's only clues are his father's book on Botany and Gina, who since the crash now works at a diner. While Martin persuades Gina to help him, Jurgen digs up information related to Martin and the biotechnology summit. He discovers the summit will be attended by Prince Shada (Mido Hamada) of Saudi Arabia, who is funding a secret project headed by Bressler. Prince Shada has survived numerous assassination attempts by extremists in his own country, and Jurgen suspects that Martin's identity theft may be part of another attempt. At Gina's apartment, Smith and another terrorist, Jones (Stipe Erceg), attack; the...???
output answer:
Who did Martin phone to in the States?