Information: - Valeri Viktorovich Liukin (born 17 December 1966) is a Kazakh-American retired artistic gymnast and a current gymnastics coach. As a competitor for the former Soviet Union, Liukin is the 1988 Olympic champion in the team competition and individually on the horizontal bar, and Olympic silver medalist in the all-around and the parallel bars. Following the 2016 Olympic Games, he succeeded Marta Karolyi as the coordinator for the U.S. Women's gymnastics team. - Olga Anatolyevna Bicherova (born October 26, 1967 or October 26, 1966 in Moscow, Russian SFSR) is a retired Soviet gymnast, who won the women's all-around gold medal at the 1981 World Artistic Gymnastics Championships. - Valentin Viktorovich Mogilny (18 December 1965 22 November 2015) was an artistic gymnast who competed for the USSR during the 1980s. His teammates were Yuri Korolev, Dmitri Bilozerchev, Valeri Liukin, and Vladimir Artemov. He trained at the Army Club in Leninsk-Kuznetsky, then moved to Moscow to work with coach Alexander Alexandrov. Mogilny was divorced from his wife Olga Bicherova (1981 world champion), with whom he had a son. Mogilny lived his last years in France, where he became a citizen, and worked as a coach. He died after a heart attack in 2015. - Marta Karolyi (nee Erss; born August 29, 1942) is a Romanian gymnastics coach of Hungarian descent and the national team coordinator for USA Gymnastics. She and her husband, Bela, are ethnic Hungarians from Transylvania, Romania, and trained athletes in Romania, but defected to the United States in 1981. Bela and Marta Karolyi have trained nine Olympic champions, fifteen world champions, sixteen European medalists and many U.S. national champions, including Mary Lou Retton, Betty Okino, Kerri Strug, Teodora Ungureanu, Phoebe Mills, Nadia Comneci, Kim Zmeskal, and Dominique Moceanu. - Yuri Nikolaevich Korolev ( Russian : ) , born August 25 , 1962 in Vladimir , Russia is an artistic gymnast who competed for The USSR during the 1980s , winning many World and European Medals . Part of a deep Soviet team that , throughout the 1980s , featured such names as Dmitry Bilozerchev , Valeri Liukin , Vladimir Artemov , and Valentin Mogilny , Korolev still managed to distinguish himself for the greater part of the decade by becoming World All - Around Champion in 1981 and 1985 , as well as being World Cup All - Around Co-Champion ( with Li Ning ) in 1986 , among many other titles and medals . - The horizontal bar, also known as the high bar, is an apparatus used by male gymnasts in artistic gymnastics. It traditionally consists of a cylindrical metal (typically steel) bar that is rigidly held above and parallel to the floor by a system of cables and stiff vertical supports. Gymnasts typically wear suede leather grips while performing on the bar. Current elite-level competition uses a more elastic fiberglass core rail similar in material to the rails used in the women's uneven bars and men's parallel bars apparatus. 'yuri korolev' is related to which object entity through the relation of 'sport'? Choices: - artistic gymnastics - gymnastics
artistic gymnastics
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Information: - In botany, a tree is a perennial plant with an elongated stem, or trunk, supporting branches and leaves in most species. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a woody trunk and branches as a way to tower above other plants to compete for sunlight. In looser senses, the taller palms, the tree ferns, bananas and bamboos are also trees. Trees tend to be long-lived, some reaching several thousand years old. The tallest known tree, a coast redwood named Hyperion, stands high. Trees have been in existence for 370 million years. It is estimated that there are just over 3 trillion mature trees in the world. - Sigillaria is a genus of extinct , spore - bearing , arborescent ( tree - like ) plants . It was a lycopodiophyte , and is related to the lycopsids , or club - mosses , but even more closely to quillworts , as was its associate Lepidodendron . - A genus (genera) is a taxonomic rank used in the biological classification of living and fossil organisms in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. - Lepidodendron also known as scale tree is an extinct genus of primitive, vascular, arborescent (tree-like) plant related to the lycopsids (club mosses). They were part of the coal forest flora. They sometimes reached heights of over , and the trunks were often over in diameter. They thrived during the Carboniferous Period (about 359.2 2.5 Mya (million years ago) to about 299.0 0.8 Mya) before going extinct. Sometimes erroneously called "giant club mosses", they were actually more closely related to today's quillworts than to modern club mosses. - Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. 'sigillaria' is related to which object entity through the relation of 'taxon rank'? Choices: - family - genus - group - kingdom - species
family
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