input question: What was the last of Dmitri Dmitriyevich Shostakovich's mother? Answer the above question based on the context below: Born at Podolskaya Street in Saint Petersburg, Russia, Shostakovich was the second of three children of Dmitri Boleslavovich Shostakovich and Sofiya Vasilievna Kokoulina. Shostakovich's paternal grandfather, originally surnamed Szostakowicz, was of Polish Roman Catholic descent (his family roots trace to the region of the town of Vileyka in today's Belarus), but his immediate forebears came from Siberia. A Polish revolutionary in the January Uprising of 18634, Bolesaw Szostakowicz would be exiled to Narym (near Tomsk) in 1866 in the crackdown that followed Dmitri Karakozov's assassination attempt on Tsar Alexander II. When his term of exile ended, Szostakowicz decided to remain in Siberia. He eventually became a successful banker in Irkutsk and raised a large family. His son Dmitri Boleslavovich Shostakovich, the composer's father, was born in exile in Narim in 1875 and studied physics and mathematics in Saint Petersburg University, graduating in 1899. He then went to work as an engineer under Dmitri Mendeleev at the Bureau of Weights and Measures in Saint Petersburg. In 1903 he married another Siberian transplant to the capital, Sofiya Vasilievna Kokoulina, one of six children born to a Russian Siberian native.Their son, Dmitri Dmitriyevich Shostakovich, displayed significant musical talent after he began piano lessons with his mother at the age of nine. On several occasions he displayed a remarkable ability to remember what his mother had played at the previous lesson, and would get "caught in the act" of playing the previous lesson's music while pretending to read different music placed in front of him. In 1918 he wrote a funeral march in memory of two leaders of the Kadet party, murdered by Bolshevik sailors.In 1919, at the age of 13, he was admitted to the Petrograd Conservatory, then headed by Alexander Glazunov, who monitored Shostakovich's progress closely and promoted him. Shostakovich studied piano with Leonid Nikolayev after a year in the class of Elena Rozanova, composition with Maximilian...???
output answer: Kokoulina

input question: What is the last name of the person whose journal entries became intermittent after October 20? Answer the above question based on the context below: De Long's party found no immediate sign at their landing-place of any human habitation, and had only a sketchy idea of where they werePetermann's map provided few useful details. On September 19, having buried their non-essential possessions in a mound marked by a tent pole, they set out in search of settlements. Progress was hampered by the poor physical condition of the men, in particular Eriksen, who was badly affected by frostbite. On September 21 they halted at two empty huts, probably part of a hunting camp, where Alexey raised spirits by shooting a deer to replenish their dwindling food stocks. De Long allowed his exhausted party several days' rest before resuming the march.On September 28 the party found a large hut, with signs of recent occupationedible food in the store, and moccasin tracks in the snow. When searches in the locality brought no sign of people, De Long decided to move on. By October 4, Eriksen could not continue; the party halted at another abandoned hut where, on October 6, Eriksen died. On October 9, with the condition of several men worsening, De Long decided to send two of the fittest in the group, Nindemann and Noros, to seek help. Ambler was offered the opportunity to go with them, but felt that his duty as a doctor required him to stay with the main body.For the next week De Long's party struggled on, sometimes making barely a mile a day. Although they jettisoned more of their possessions on the way, De Long insisted on carrying his maps and journals. His entry for October 10 recorded that there was "nothing for supper but a spoonful of glycerine". A few days later Alexey, the group's principal hunter, shot a ptarmigan which provided soup. But Alexey was weakening, and on October 17 he died.On October 20, trapped by the weather and without supplies, the party came to a final halt. Throughout the march De Long had written up his journal each day, but after October 20 his entries became intermittent, largely limited to terse statements of the dying and the dead. He noted the...???
output answer: De Long

input question: What is the full name of the company that markets pumice in slabs for use in commercial scouring? Answer the above question based on the context below: People have used resources on and around the MonoInyo Craters for centuries. Mono Paiutes gathered obsidian from the MonoInyo Craters to make sharp tools and arrow points. Unworked obsidian was carried by the Mono Paiutes over passes in the Sierra Nevada to trade with other Native American groups. Chips of MonoInyo obsidian can still be found at many ancient mountain campsites. Gold rushrelated boomtowns sprang up near Mono Basin in the 19th century to exploit bonanzas. The largest of these, Bodie (north of Mono Lake), was founded in the late 1870s and grew large enough to need a tree mill, which was located at Mono Mills, immediately northeast of Mono Domes. Trees directly around the domes and on their slopes were felled to provide timber for the mill. As part of the California Water Wars, the Los Angeles Department of Water and Power purchased large tracts of land in the 1930s within Mono Basin and Owens Valley in order to control water rights. Excavation of an 11.5-mile (18.5 km) water tunnel under the southern part of the Mono Craters dome complex started in 1934 and was completed in 1941. Tunnel workers had to deal with loose and often water-charged gravels, pockets of carbon dioxide gas and flooding. About one man was lost for each mile excavated. Water diverted from its natural outlet in Mono Lake passes through the tunnel on its way to the Los Angeles Aqueduct system. The United States Pumice Company, based in Chatsworth, California, has mined the area for pumice since 1941. The company markets the pumice in slabs for use in commercial scouring and in large irregular chunks sold as yard decoration.Apollo 16's John Young and Charlie Duke did some of their geologic training here in June 1971. William R. Muehlberger was one of the geology instructors.Exploratory drilling for geothermal power occurred near the Mono Craters on the south shore of Mono Lake in 1971. The wells did not show promising results, so the effort was abandoned.???
output answer:
The United States Pumice Company