user: input: Please answer the following: I have a test where I am given the following article, what is an answer for the question: What animal has no dorsal fin to prevent collision with pack ice? ?  Odontocetes are known as toothed whales; they have teeth and only one blowhole. They rely on their well-developed sonar to find their way in the water. Toothed whales send out ultrasonic clicks using the melon. Sound waves travel through the water. Upon striking an object in the water, the sound waves bounce back at the whale. These vibrations are received through fatty tissues in the jaw, which is then rerouted into the ear-bone and into the brain where the vibrations are interpreted. All toothed whales are opportunistic, meaning they will eat anything they can fit in their throat because they are unable to chew. These animals rely on their well-developed flippers and tail fin to propel themselves through the water; they swim by moving their fore-flippers and tail fin up and down. Whale ribs loosely articulate with their thoracic vertebrae at the proximal end, but they do not form a rigid rib cage. This adaptation allows the chest to compress during deep dives as opposed to resisting the force of water pressure. Excluding dolphins and porpoises, odontocetes consist of four families: belugas and narwhals (monodontids), sperm whales (physeterids), dwarf and pygmy sperm whales (kogiids), and beaked whales (ziphiids). There are six species, sometimes referred to as "blackfish", that are dolphins commonly misconceived as whales: the killer whale, the melon-headed whale, the pygmy killer whale, the false killer whale, and the two species of pilot whales, all of which are classified under the family Delphinidae (oceanic dolphins).The differences between families of odontocetes include size, feeding adaptations and distribution. Monodontids consist of two species: the beluga and the narwhal. They both reside in the frigid arctic and both have large amounts of blubber. Belugas, being white, hunt in large pods near the surface and around pack ice, their coloration acting as camouflage. Narwhals, being black, hunt in large pods in the aphotic zone, but their underbelly still remains white to remain camouflaged when...
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output: Narwhals


input: Please answer the following: I have a test where I am given the following article, what is an answer for the question: What is the first name of the person who rushes out in terror? ?  FBI Regional Bureau Chief Gordon Cole sends agents Chester Desmond and Sam Stanley to investigate the murder of drifter and teenage prostitute Teresa Banks in the town of Deer Meadow, Washington. The pair are informed about their new assignment through a woman named Lil. On her lapel is a tiny, artificial blue rose, clearly symbolic of something; when Sam asks, Chet simply replies, "But I can't tell you about that." Desmond and Stanley view Teresa's body at the local morgue. They notice that a ring is missing from her finger and a small piece of paper printed with the letter "T" has been inserted under one of her fingernails. Later, Desmond discovers Teresa's missing ring under a trailer. As he reaches out to it, he is taken by an unseen force. At FBI headquarters in Philadelphia, Cole and Agent Dale Cooper experience a brief vision of their long-lost colleague Agent Phillip Jeffries. He tells them about a meeting he witnessed involving several mysterious spirits — The Man from Another Place, Killer BOB, Mrs. Chalfont and her grandson. Agent Cooper is sent to Deer Meadow to investigate Desmond's disappearance, but finds no answers. One year later in Twin Peaks, high school homecoming queen Laura Palmer and her best friend Donna Hayward attend school. Laura is addicted to cocaine and is cheating on her boyfriend, the arrogant and ill-tempered jock Bobby Briggs, with the biker James Hurley. Laura realizes pages are missing from her secret diary, and gives the rest of the diary to her friend, the agoraphobic recluse Harold Smith. Mrs. Chalfont and her grandson appear to Laura. They warn her that the "man behind the mask" is in her bedroom. Laura runs home, where she sees BOB. She rushes outside in terror and is startled to see her father, Leland, emerge from the house. That evening Leland's behavior is erratic and abusive—he accusingly asks her about her romances, then tenderly tells her he loves her.
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output: Laura


input: Please answer the following: I have a test where I am given the following article, what is an answer for the question: Who realizes the "The Address Book Killer" stole Terry's address book? ?  A serial killer named Karl Hochman is known as "The Address Book Killer" due to his habit of stealing address books and choosing his victims from them. While he is working at a computer store, he obtains Terry Munroe's (Karen Allen) address book after another employee, who is demonstrating a scanner, copies a page of her address book into the computer. On a rainy night while heading home, Karl collides into a truck, which causes his car to go off the road and swerve down a trail in a cemetery as he laughs. In the emergency room he is put into an MRI machine. A surge from an electrical storm manages to transfer his soul into a computer. Now as a network-based entity, Karl continues to plot his killing spree using various objects connected to the electrical grid and computer networks. Karl opens the scanned page from Terry's address book and begins to kill all the names he finds there. Her co-worker, Frank Mallory, becomes the first victim when his microwave oven explodes. Another friend, Elliot Kastner, gets burned to death when a hand dryer turns into a flamethrower. Terry hires a babysitter, Carol Maibaum, to look after her son Josh. However, Carol becomes the third victim, electrocuted by an exploding dishwasher in the kitchen. The police do not believe the theory that Karl is on a killing spree after his death, but Josh realizes the order of the killings is related to a list of contacts from Terry's address book. Terry, along with computer hacker Bram Walker, unplugs everything in her house.
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output:

assistant: Josh