input: Please answer the following: A friend asked me to answer this question: What is the name of the drilling fluid that is now unpopular because it dissolves many materials, which prevents their use in the drilling equipment it comes in contact with?, using the article: Drilling fluids are necessary for borehole stability in deep cores, and can also be used to circulate cuttings away from the bit. Fluids used include water, ethanol/water and water/ethylene glycol mixtures, petroleum fuels, non-aromatic hydrocarbons, and n-butyl acetate. Water is the cheapest and cleanest option; it may be present on the glacial surface or may be created by thermal drilling. In cold ice some form of antifreeze is necessary, or heat must be reapplied by reaming the hole periodically. Ethanol and water. Ethanol acts as an anti-freeze in water; at sufficient concentrations it can reduce the freezing temperature of the mixture to well below any temperature likely to be encountered in ice drilling. The concentration must be chosen to prevent the liquid freezing and also to maintain the borehole against the ice overburden pressure. Because the density of the mixture decreases with lower temperatures, vertical convection will develop in boreholes where temperatures decrease with depth, as the lighter mixture rises. This causes slush to form in the borehole, though successful drilling is still possible. Ethanol is one of the cheapest options for a drilling fluid, and requires less storage space than other options because in use it is diluted with water. A Soviet expedition left an 800 m borehole in Antarctica filled with ethanol and water at an ice temperature of 53 C; after 11 months the borehole remained open and drilling was resumed with no problems. A problem with this option is that the mixture will penetrate cores that have cracks. Ethylene glycol and water was used at Camp Century in 1966 in the lower part of the hole to dissolve the cuttings. Petroleum fuels. This includes diesel, jet fuel, and kerosene. They are inexpensive and easily available, and were once in common use; disadvantages include flammability and the aromatics they contain, which are a health hazard. Non-aromatic hydrocarbons. As of 2009 these had become the most commonly used drilling fluids; eliminating the..., what would be the answer ?
++++++++++
output: n-Butyl acetate

input: Please answer the following: A friend asked me to answer this question: Who, along with Sarah, is captured and held captive by Soviet agents?, using the article: John Shay, a British MI5 agent, had grown up in the United States, and who was nearly killed while on assignment abroad. Convinced that he was framed, he returns to London to uncover the mole responsible for the set-up. John Shay suspects that his colleague Adam Booth is a Russian spy. The action takes place in London, Athens, Istanbul and Corfu, where Shay goes in his investigation trying to gather evidence that Booth is a double agent. When Shay's superiors are not convinced, and even after a special hearing clears Booth of any wrongdoing, he takes matters into his own hands and executes Booth.Shay assumes the identity of Booth, and, with the assistance of Booth's widow Sarah and his own girlfriend Polly, he launches into an investigation to uncover Booth's connections. Shay maintains a romantic relationship with both women. Booth's wife is the romantic interest of Shay and British scientist Philip Crawford, who provided information to Shay about Booth being a double agent. Shay's superiors are Col. Scott and Vaughan Jones. Polly assists him in his investigations by providing him with information apparently confirming his suspicions.Shay finds a plane ticket in Booth's pocket which he then uses to fly to Athens along with Booth's widow, who is unaware that her husband has been murdered by Shay. Upon arrival in Athens, Shay assumes Booth's identity and subsequently goes to Corfu, where he is captured along with Sarah by Soviet agents who want Crawford in return for the freedom of their captives. A CIA agent under the name of Professor Parker manages to free them both. Colonel Scott (Shay's superior) reveals that Sarah's husband was indeed a double agent who was used by MI5 to supply the Soviets with false information., what would be the answer ?
++++++++++
output: John Shay

input: Please answer the following: A friend asked me to answer this question: What is the first name of the person who does not get along with her father?, using the article: Annie Burroughs is a wild 19-year-old who has just dropped out of college. Fearing to face her father, she packs her stuff and moves in with her older sister Marsha, who runs her own gallery in Los Angeles. Marsha is in a relationship with David Mitchell, a 31-year-old doctor who dreams of having his own private practice. Although they are very happy together, David isn't glad Marsha is spending so much time on work. Meanwhile, Annie immediately settles in the big city, landing a job as a receptionist at David's clinic. Although at first it is innocent and playful, Annie and David start flirting with each other. A subplot focuses on the relationship between Annie and her father Tom. When she was still a child, Annie witnessed the death of her mother. She was crossing the street when a car suddenly drove toward her. Her mother, trying to save her, ran on the street and pushed Annie away, after which she was fatally hit by the car herself. Ever since, she and Tom do not get along well. Annie feels that her father blames her for her mother's death. Annie once wanted to become a painter, just like her mother, but after her death she became isolated and gave up that dream. One night, David fails to save the life of his patient Billy, who has committed suicide. Annie witnesses his death and is reminded of her own mother. Both feeling very emotional, Annie and David end up kissing each other. The next day, Annie feels guilty, but David assures her it was only an innocent kiss. One night, Tom is throwing a family party. Annie gives him a self-made painting, but the style reminds him too much of her mother's, which upsets him. They end up getting into a fight, after which Annie leaves., what would be the answer ?
++++++++++
output:
Annie