Detailed Instructions: In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).
Problem:Context: 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., The Soviet national basketball team was the basketball side that represented the Soviet Union in international competitions. After the dissolution of the Soviet Union in 1991, the successor countries all set up their own national teams. Based on the number of titles, the basketball program of the former Soviet Union remains one of the most successful in the history of international basketball competitions., Gennadi Georgievich Volnov ( Russian :    ) ( November 28 , 1939 -- July 15 , 2008 ) was a Russian basketball player who played for the Soviet Union national basketball team from the late 1950s to the early 1970s . He was born in Moscow . Volnov won the gold medal playing for the Soviet basketball team in the 1972 Summer Olympics . He won two silver medals at the 1960 and 1964 Summer Olympics and a bronze medal at the 1968 Summer Olympics . Volnov also won a gold medal at Mundobasket 1967 , a bronze medal at Mundobasket 1963 and six Eurobasket gold medals ( 1959 , 1961 , 1963 , 1965 , 1967 , 1969 ) . He played for Moscow Burevestnik from 1956 to 1958 . He spent most of his career playing CSKA Moscow ( 1958 -- 1970 ) winning 10 Soviet championships ( 1960 , 1961 , 1962 , 1963 , 1964 , 1965 , 1966 , 1967 , 1969 , 1970 ) and 3 Euroleague Championships ( 1961 , 1963 , 1969 ) ., Basketball is a sport that is played by two teams of five players on a rectangular court. The objective is to shoot a ball through a hoop in diameter and mounted at a height of to backboards at each end of the court. The game was invented in 1891 by Dr. James Naismith, who would be the first basketball coach of the Kansas Jayhawks, one of the most successful programs in the game's history. , Nizhny Novgorod, colloquially shortened to Nizhny, is a city in the administrative center of Nizhny Novgorod Oblast and Volga Federal District in Russia. From 1932 to 1990, it was known as Gorky, after the writer Maxim Gorky, who was born there. The city is an important economic, transportation, scientific, educational and cultural center in Russia and the vast Volga-Vyatka economic region, and is the main center of river tourism in Russia. In the historical part of the city there are a large number of universities, theaters, museums and churches. Nizhny Novgorod is located about 400 km east of Moscow, where the Oka empties into the Volga. Population: , Subject: gennadi volnov, Relation: position_played_on_team_/_speciality, Options: (A) center (B) end
Solution:
center