In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Input: Consider Input: Passage: To design and build his ship Nansen chose Colin Archer, Norway's leading shipbuilder and naval architect. Archer was well known for a particular hull design that combined seaworthiness with a shallow draught, and had pioneered the design of "double-ended" craft in which the conventional stern was replaced by a point, increasing manoeuvrability. Nansen records that Archer made "plan after plan of the projected ship; one model after another was prepared and abandoned". Finally, agreement was reached on a design, and on 9 June 1891 the two men signed the contract.Nansen wanted the ship in one year; he was eager to get away before anyone else could adopt his ideas and forestall him. The ship's most significant external feature was the roundness of the hull, designed so that there was nothing upon which the ice could get a grip. Bow, stern and keel were rounded off, and the sides smoothed so that, in Nansen's words, the vessel would "slip like an eel out of the embraces of the ice". To give exceptional strength the hull was sheathed in South American greenheart, the hardest timber available. The three layers of wood forming the hull provided a combined thickness of between 24 and 28 inches (6070 cm), increasing to around 48 inches (1.25 metres) at the bow, which was further protected by a protruding iron stem. Added strength was provided by crossbeams and braces throughout the length of the hull.
The ship was rigged as a three-masted schooner, with a total sail area of 6,000 square feet (560 m2). Its auxiliary engine of 220 horse-power was capable of speeds up to 7 knots (13 km/h; 8.1 mph). However, speed and sailing qualities were secondary to the requirement of providing a safe and warm stronghold for Nansen and his crew during a drift that might extend for several years, so particular attention was paid to the insulation of the living quarters. At around 400 gross register tonnage, the ship was considerably larger than Nansen had first anticipated, with an overall length of 128 feet (39 m) and a breadth of 36 feet (11 m), a ratio of just over three to one, giving her an unusually stubby appearance. This odd shape was explained by Archer: "A ship that is built with exclusive regard to its suitability for [Nansen's] object must differ essentially from any known vessel." On 6 October 1892, at Archer's yard at Larvik, the ship was launched by Nansen's wife Eva after a brief ceremony. The ship was named Fram, meaning "Forward".
Question: What is the name of the ship that was rigged as a three-masted schooner, with a total sail area of 6,000 square feet?

Output: Fram.

Input: Consider Input: Passage: Spoiled playboy Bob Merrick's (Rock Hudson) reckless behaviour causes him to lose control of his speedboat. Rescuers send for the nearest resuscitator, located in Dr. Phillips's house across the lake. While the resuscitator is being used to save Merrick, Dr. Phillips suffers a heart attack and dies. Merrick ends up a patient at Dr. Phillips's clinic, where most of the doctors and nurses resent the fact that Merrick inadvertently caused Dr. Phillips's death.
Helen Phillips, Dr. Phillips's widow, receives a flood of calls, letters, and visitors all offering to pay back loans that Dr. Phillips refused to accept repayment of during his life. Many claimed he refused by saying "it was already used up." Edward Randolph, a famous artist and Dr. Phillips's close friend, explains to Helen what that phrase means. This helps her to understand why her husband left little money, even though he had a very successful practice.
Merrick discovers why everyone dislikes him. He runs from the clinic but collapses in front of Helen's car and ends up back at the hospital, where she learns his true identity. After his discharge, Merrick leaves a party, drunk. Merrick runs off the road and ends up at the home of Edward Randolph, who recognizes him. Randolph explains the secret belief that powered his own art and Dr. Phillips's success. Merrick decides to try out this new philosophy. His first attempt causes Helen to step into the path of a car while trying to run away from Merrick's advances. She is left blind as a result of this accident.
Merrick soberly commits to becoming a doctor, trying to fulfill Dr. Phillips's legacy. He also has fallen in love with Helen and secretly helps her adjust to her blindness under the guise of being simply a poor medical student, Robby.
Question: What is the last name of the person who understands why her husband left little money?

Output: Phillips.

Input: Consider Input: Passage: The political and cultural impacts of the development of nuclear weapons were profound and far-reaching. William Laurence of The New York Times, the first to use the phrase "Atomic Age", became the official correspondent for the Manhattan Project in spring 1945. In 1943 and 1944 he unsuccessfully attempted to persuade the Office of Censorship to permit writing about the explosive potential of uranium, and government officials felt that he had earned the right to report on the biggest secret of the war. Laurence witnessed both the Trinity test and the bombing of Nagasaki and wrote the official press releases prepared for them. He went on to write a series of articles extolling the virtues of the new weapon. His reporting before and after the bombings helped to spur public awareness of the potential of nuclear technology and motivated its development in the United States and the Soviet Union.
The wartime Manhattan Project left a legacy in the form of the network of national laboratories: the Lawrence Berkeley National Laboratory, Los Alamos National Laboratory, Oak Ridge National Laboratory, Argonne National Laboratory, and Ames Laboratory. Two more were established by Groves soon after the war, the Brookhaven National Laboratory at Upton, New York, and the Sandia National Laboratories at Albuquerque, New Mexico. Groves allocated $72 million to them for research activities in fiscal year 19461947. They would be in the vanguard of the kind of large-scale research that Alvin Weinberg, the director of the Oak Ridge National Laboratory, would call Big Science.The Naval Research Laboratory had long been interested in the prospect of using nuclear power for warship propulsion, and sought to create its own nuclear project. In May 1946, Nimitz, now Chief of Naval Operations, decided that the Navy should instead work with the Manhattan Project. A group of naval officers were assigned to Oak Ridge, the most senior of whom was Captain Hyman G. Rickover, who became assistant director there. They immersed themselves in the study of nuclear energy, laying the foundations for a nuclear-powered navy. A similar group of Air Force personnel arrived at Oak Ridge in September 1946 with the aim of developing nuclear aircraft. Their Nuclear Energy for the Propulsion of Aircraft (NEPA) project ran into formidable technical difficulties, and was ultimately cancelled.The ability of the new reactors to create radioactive isotopes in previously unheard-of quantities sparked a revolution in nuclear medicine in the immediate postwar years. Starting in mid-1946, Oak Ridge began distributing radioisotopes to hospitals and universities. Most of the orders were for iodine-131 and phosphorus-32, which were used in the diagnosis and treatment of cancer. In addition to medicine, isotopes were also used in biological, industrial and agricultural research.
Question: At what lab did a group of naval officers immerse themselves in nuclear energy research?
Output: Oak Ridge.