Information:  - An ice resurfacer is a vehicle or hand-pushed device used to clean and smooth the surface of an ice sheet, usually in an ice rink. The two major North American manufacturers are Resurfice Corporation, which sells Olympia-brand machines, and Frank J. Zamboni & Company and other brands include the Okay Elektra, an electric ice resurfacer made in Canada in the province of Quebec. The first ice resurfacer was pioneered and developed by American inventor and engineer Frank Zamboni in 1949 in the city of Paramount, California. Zamboni is an internationally registered trademark.  - An ice rink (or ice skating rink) is a frozen body of water and/or hardened chemicals where people can ice skate or play winter sports. Besides recreational ice skating, some of its uses include ice hockey, bandy, rink bandy, ringette, broomball, speed skating, figure skating, ice stock sport and curling as well as exhibitions, contests and ice shows. There are two types of rinks in prevalent use today: natural, where freezing occurs from cold ambient temperatures, and artificial (or mechanically frozen), where a coolant produces cold temperatures in the surface below the water, causing the water to freeze. There are also synthetic ice rinks where skating surfaces are made out of plastics.  - Frank Joseph Zamboni , Jr. ( January 16 , 1901 -- July 27 , 1988 ) was an American inventor , whose most famous invention is the modern ice resurfacer , with his surname being registered as a trademark for these resurfacers .    After reading the paragraphs above, choose the best answer for the entity that related to 'frank zamboni' with the relationship of 'sport'.  Choices: - bandy  - figure skating  - ice hockey  - ice skating  - speed skating
ice hockey
Q: Information:  - Russia (from the  Rus'), also officially known as the Russian Federation, is a country in Eurasia. At , Russia is the largest country in the world by surface area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 140 million people at the end of March 2016. The European western part of the country is much more populated and urbanised than the eastern, about 77% of the population live in European Russia. Russia's capital Moscow is one of the largest cities in the world, other major urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod and Samara.  - Andrei Alexandrovich Suraikin (born October 20, 1948 in Leningrad;  about 1992) was a Russian pair skater. With partner Liudmila Smirnova, he was the 1972 Olympic silver medalist.  - Irina Konstantinovna Rodnina (born 12 September 1949) is a Russian politician and figure skater, who is the only pair skater to win 10 successive World Championships (196978) and three successive Olympic gold medals (1972, 1976, 1980). She was elected to the State Duma in the 2007 legislative election as a member of President Vladimir Putin's United Russia party. As a figure skater, she initially competed with Alexei Ulanov and later teamed up with Alexander Zaitsev. She is the first pair skater to win the Olympic title with two different partners, followed only by Artur Dmitriev.  - Lyudmila Stanislavovna Smirnova ( Russian :    ; born July 21 , 1949 in Leningrad ) is a retired pair skater who competed for the Soviet Union . With partner Andrei Suraikin , she is the 1972 Winter Olympic silver medalist . With later partner Alexei Ulanov , she is a two - time World silver medalist .  - Moscow (or ) is the capital and most populous city of Russia, with 12.2 million residents within the city limits and 16.8 million within the urban area. Moscow has the status of a Russian federal city.  - The Soviet Union, officially the Union of Soviet Socialist Republics (USSR " ) was a socialist state in Eurasia that existed from 1922 to 1991. A union of multiple subnational republics, its government and economy were highly centralized. The Soviet Union was a one-party federation, governed by the Communist Party with Moscow as its capital.  - Alexei Nikolaevich Ulanov (born 4 November 1947) is a retired pair skater who represented the Soviet Union. With Irina Rodnina, he is the 1972 Olympic champion and a four-time (19691972) world champion. With later partner Lyudmila Smirnova, he is a two-time world silver medalist.    After reading the paragraphs above, choose the best answer for the entity that related to 'lyudmila smirnova' with the relationship of 'date of birth'.  Choices: - 10  - 12  - 140  - 1922  - 1947  - 1948  - 1949  - 1972  - 1976  - 1991  - 2  - 20  - 4  - 4 november 1947  - 77
A: 4 november 1947