Information: - A mathematician is someone who uses an extensive knowledge of mathematics in his/her work, typically to solve mathematical problems. - The Tournament of the Towns ("International Mathematics Tournament of the Towns", " ", " ") is a town-based mathematics contest originating in Russia. The contest was created by mathematician Nikolay Konstantinov and has participants from over 100 cities in many different countries. - Paul Erds (; 26 March 1913 20 September 1996) was a Hungarian mathematician. He was one of the most prolific mathematicians of the 20th century. He was known both for his social practice of mathematics (he engaged more than 500 collaborators) and for his eccentric lifestyle ("Time" magazine called him "The Oddball's Oddball"). He devoted his waking hours to mathematics, even into his later yearsindeed, his death came only hours after solving a geometry problem in a conference in Warsaw. - Nikolay Nikolayevich Konstantinov ( Russian : ; born 2 January 1932 ) is a leading Soviet and Russian mathematical educator and organizer of numerous mathematics competitions for high school students . He is best known as the creator and chief organizer of the Tournament of the Towns . For his work he was awarded the Paul Erds award in 1992 . - 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 140million 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. What entity does 'nikolay konstantinov' has the relation 'occupation' with?
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Answer: mathematician

Information: - The Australian Institute of Sport (AIS) is a sports training institution in Australia. The Institute's headquarters were opened in 1981 and are situated in Canberra (the capital city of Australia). The 66-hectare site campus is in the northern suburb of Bruce. The AIS is a division of the Australian Sports Commission. - The 2004 Summer Olympic Games, officially known as the Games of the XXVIII Olympiad and commonly known as Athens 2004, was a premier international multi-sport event held in Athens, Greece, from 13 to 29 August 2004 with the motto "Welcome Home." 10,625 athletes competed, some 600 more than expected, accompanied by 5,501 team officials from 201 countries. There were 301 medal events in 28 different sports. Athens 2004 marked the first time since the 1996 Summer Olympics that all countries with a National Olympic Committee were in attendance. 2004 marked the return of the games to the city where they began. - Dean Lester Pullar ( born 11 May 1973 in Melbourne , Victoria ) is an Australian diver , who won a bronze medal in the 2000 Summer Olympics alongside Robert Newbery . He was an Australian Institute of Sport scholarship holder . Dean currently owns and runs the family cold store warehouse situated on the old family orchard in Cobram , Victoria . - The 2000 Summer Olympic Games, officially known as the Games of the XXVII Olympiad and commonly known as Sydney 2000 or the Millennium Olympic Games/Games of the New Millennium, were an international multi-sport event which was held between 15 September and 1 October 2000 in Sydney, New South Wales, Australia. It was the second time that the Summer Olympics were held in Australia, and also the Southern Hemisphere, the first being in Melbourne, Victoria, in 1956. - A multi-sport event is an organized sports event, often held over multiple days, featuring competition in many different sports between organized teams of athletes from (mostly) nation states. The first major, modern, multi-sport event of international significance is the modern Olympic Games. - Robert Frederick Newbery (born 2 January 1979 in Adelaide, South Australia) is an Australian diver, who won a bronze medal in the 2000 Summer Olympics and two bronze medals in the 2004 Summer Olympics, one with synchronised springboard diving partner Steven Barnett. He was an Australian Institute of Sport scholarship holder. What entity does 'dean pullar' has the relation 'sport' with?
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Answer:
diving