instruction:
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.
question:
Passage: Between 9:00 pm and 10:00 pm the guards enacted a strategy whereby the police officers, backed by the bayonets of the soldiers, advanced to the crowd and arrested each a man, who was then taken into the station, disarmed, and held there. The strategy was largely successful, and by 11:00 pm the area around the station was mostly cleared, though sporadic gunfire could be heard throughout the night. Between 165 and 200 were detained in total, and the most violent of the captives were removed and taken to the police station. The news reported that four, including one police officer, were injured in the exchange, and several who resisted arrest were beaten severely.At the foundry near the Carey Street Bridge, a crowd of more than 100 gathered and threatened to set fire to the area. A contingent of the 5th under Captain Lipscomb arrived, and a volley fired over the heads of the crowd was sufficient to dissuade the crowd. An unsuccessful attempt was also made to burn a B&O transportation barge at Fell's Point. The news reported that 16 were arrested in a confrontation between citizens and the police at Lee and Eutaw, and that during the night, three separate attempts were made to set fire the 6th Regiment armory, but all were frustrated by the remaining garrison there.Just before midnight, 120–135 marines arrived at the station and reported to the governor, who ordered them to set about capturing the leaders of the mob. Governor Carroll telegraphed and advised President Hayes that order had been restored in the city.
Between 2:00 am and 3:00 am on Sunday morning, July 22, the peace was again broken and fire alarms began to ring throughout the city. To the west, at the Mount Clare Shops of the B&O, a 37-car train of coal and oil had been set on fire. Police, firefighters, and thousands of citizens flocked to the scene. A contingent of 50 marines was dispatched to the area to provide assistance. The cars which had not yet caught fire were detached from those burning, and by the time the flames were extinguished between seven and nine cars had been burned. Between $11,000 and $12,000 in damage was sustained.At 4:00 am another alarm sounded: the planing mills and lumber yard of J. Turner & Cate near the Philadelphia Wilmington & Baltimore rail depot, had been set on fire. The entire property, extending over a full city block, was destroyed. Realizing the severity of the situation, the firefighters concentrated their efforts on trying to save the surrounding structures.According to news reports, the first passenger trains left the city at 9:00 am, and continued running throughout the day. Around 10:00 am, General W. S. Hancock arrived and was followed by 360–400 federal troops from New York and Fort Monroe, who relieved those guarding Camden Station. They brought with them two 12 pounder artillery pieces. From that point on, the men of the 5th and the federal troops took turns guarding the station. 
Question: At what time was the lumber yard of J. Turner & Cate set on fire on the day where a car train of coal was set on fire?
answer:
4:00 am.


question:
Passage: Throughout the early years of the July Monarchy, Alkan continued to teach and play at public concerts and in eminent social circles. He became a friend of many who were active in the world of the arts in Paris, including Franz Liszt (who had been based there since 1827), George Sand, and Victor Hugo. It is not clear exactly when he first met Frédéric Chopin, who arrived in Paris in September 1831. In 1832 Alkan took the solo role in his first Concerto da camera for piano and strings at the Conservatoire. In the same year, aged 19, he was elected to the influential Société Académique des Enfants d'Apollon (Society of the Children of Apollo), whose members included Luigi Cherubini, Fromental Halévy, the conductor François Habeneck, and Liszt, who had been elected in 1824 at the age of twelve. Between 1833 and 1836 Alkan participated at many of the Society's concerts. Alkan twice competed unsuccessfully for the Prix de Rome, in 1832 and again in 1834; the cantatas which he wrote for the competition, Hermann et Ketty and L'Entrée en loge, have remained unpublished and unperformed.In 1834 Alkan began his friendship with the Spanish musician Santiago Masarnau, which was to result in an extended and often intimate correspondence which only came to light in 2009. Like virtually all of Alkan's correspondence, this exchange is now one-sided; all of his papers (including his manuscripts and his extensive library) were either destroyed by Alkan himself, as is clear from his will, or became lost after his death. Later in 1834 Alkan made a visit to England, where he gave recitals and where the second Concerto da camera was performed in Bath by its dedicatee Henry Ibbot Field; it was published in London together with some solo piano pieces. A letter to Masarnau and a notice in a French journal that Alkan played in London with Moscheles and Cramer, indicate that he returned to England in 1835. Later that year, Alkan, having found a place of retreat at Piscop outside Paris, completed his first truly original works for solo piano, the Twelve Caprices, published in 1837 as Opp. 12, 13, 15 and 16. Op. 16, the Trois scherzi de bravoure, is dedicated to Masarnau. In January 1836, Liszt recommended Alkan for the post of Professor at the Geneva Conservatoire, which Alkan declined, and in 1837 he wrote an enthusiastic review of Alkan's Op. 15 Caprices in the Revue et gazette musicale. 
Question: Whose cantatas written for the competition, Hermann et Ketty and L'Entrée en loge, have remained unpublished and unperformed?
answer:
Alkan.


question:
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 1946–1947. 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?
answer:

Oak Ridge.


