You will be given a definition of a task first, then some input of the task.
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).

Context: Volga (Privolzhsky) Federal District ("Privolzhsky federalny okrug") is one of the eight federal districts of Russia. It forms the southeastern part of European Russia. Its population was 29,899,699 (70.8% urban) according to the 2010 Census, living on an area of . Mikhail Babich was appointed the federal district's Presidential Envoy on December 15, 2011., Alexander Aleksandrovic Vesnin (1883, Yuryevets  1959, Moscow), together with his brothers Leonid and Viktor, was a leading light of Constructivist architecture. He is best known for his meticulous perspectival drawings such as "Leningrad Pravda" of 1924., Constructivist architecture was a form of modern architecture that flourished in the Soviet Union in the 1920s and early 1930s. It combined advanced technology and engineering with an avowedly Communist social purpose. Although it was divided into several competing factions, the movement produced many pioneering projects and finished buildings, before falling out of favour around 1932. It has left marked effects on later developments in architecture., 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., Yuryevets is the name of several inhabited localities in Russia., Leonid Aleksandrovich Vesnin (    ) ( 1880 in Nizhny Novgorod -- 1933 in Moscow ) , together with his brothers Alexander Vesnin and Viktor Vesnin , was a leading light of Constructivist architecture ., Alexei Maximovich Peshkov (or   18 June 1936), primarily known as Maxim (Maksim) Gorky, was a Russian and Soviet writer, a founder of the socialist realism literary method and a political activist. He was also a five-time nominee for the Nobel Prize in Literature. Around fifteen years before success as a writer, he frequently changed jobs and roamed across the Russian Empire; these experiences would later influence his writing. Gorky's most famous works were "The Lower Depths" (1902), "Twenty-six Men and a Girl", "The Song of the Stormy Petrel", "The Mother", "Summerfolk" and "Children of the Sun". He had an association with fellow Russian writers Leo Tolstoy and Anton Chekhov; Gorky would later mention them in his memoirs., 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: , Volga-Vyatka economic region (
tr.: "Volgo-Vyatsky ekonomichesky rayon") is one of twelve economic regions of Russia. It accounted for almost 3 per cent of the national GRP in 2008., 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., 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., Nizhny Novgorod Oblast ("Nizhegorodskaya oblast"), also known in English as Nizhegorod Oblast, is a federal subject of Russia (an oblast). Its administrative center is the city of Nizhny Novgorod. Population: 3,310,597 (2010 Census). From 1932 to 1990 it was known as Gorky Oblast., Subject: leonid aleksandrovich vesnin, Relation: country_of_citizenship, Options: (A) russia (B) russian empire (C) soviet union (D) writer
Output:
russia