Information: - Novosibirsk is the third-most populous city in Russia after Moscow and St.Petersburg. It is the most populous city in Asian Russia, with a population of1,473,754 as of the 2010 Census. It is the administrative center of Novosibirsk Oblast as well as of the Siberian Federal District. The city is located in the southwestern part of Siberia on the banks of the Ob River adjacent to the Ob River Valley, near the large water reservoir formed by the dam of the Novosibirsk Hydro Power Plant, and occupies an area of . - The Russian Far East is the Russian part of the Far East, i.e. the extreme east parts of Russia, between Lake Baikal in Eastern Siberia and the Pacific Ocean. The Far Eastern Federal District, which covers this area, borders with the Siberian Federal District to the west. The Far Eastern Federal District has land borders with the People's Republic of China and North Korea to the south west and maritime borders with Japan and the American state of Alaska. Although traditionally considered part of Siberia, the Russian Far East is categorized separately from Siberia in Russian regional schemes (and previously during the Soviet era when it was called the Soviet Far East). - The Amur River (Even: , "Tamur" ) or Heilong Jiang ("Black Dragon River" "Black Water") is the world's tenth longest river, forming the border between the Russian Far East and Northeastern China (Inner Manchuria). The largest fish species in the Amur is the kaluga, attaining a length as great as . - Eurasia is the combined continental landmass of Europe and Asia. The term is a portmanteau of its constituent continents. Located primarily in the Northern and Eastern Hemispheres, it is bordered by the Atlantic Ocean to the west, the Pacific Ocean to the east, the Arctic Ocean to the north, and by Africa, the Mediterranean Sea, and the Indian Ocean to the south. The division between Europe and Asia as two different continents is a historical and cultural construct, with no clear physical separation between them; thus, in some parts of the world, Eurasia is recognized as the largest of five or six continents. In geology, Eurasia is often considered as a single rigid megablock. However, the rigidity of Eurasia is debated based on the paleomagnet data. - Heihe ("Black River") is a prefecture-level city of northern Heilongjiang province, China, located on the Russian border, on the south bank of the Heilong Jiang, across the river from Blagoveshchensk. Heihe has an urban population of about 211,313, while the total population of the prefecture-level city is 1,673,893. In 2015, Heihe had a GDP of RMB 44.78 billion. - A tributary or affluent is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean. - "Main Stem" is 1942 instrumental by Duke Ellington and His Famous Orchestra. Although recorded in 1942, the single would not be released until 1944 where it was Duke Ellington's last of four number one's on the Harlem Hit Parade. "Main Stem" also peaked at number twenty on the pop chart. - In geography, a confluence is the meeting of two or more bodies of water. Also known as a "conflux", it refers either to the point where a tributary joins a larger river, (main stem), or where two streams meet to become the source of a river of a new name, such as the confluence of the Monongahela and Allegheny rivers in Pittsburgh, Pennsylvania creating the Ohio River. - Saint Petersburg is Russia's second-largest city after Moscow, with fivemillion inhabitants in 2012, and an important Russian port on the Baltic Sea. It is politically incorporated as a federal subject (a federal city). Situated on the Neva River, at the head of the Gulf of Finland on the Baltic Sea, it was founded by Tsar Peter the Great on May . In 1914, the name was changed from Saint Petersburg to Petrograd, in 1924 to Leningrad, and in 1991 back to Saint Petersburg. Between 17131728 and 17321918, Saint Petersburg was the imperial capital of Russia. In 1918, the central government bodies moved to Moscow. - A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as stream, creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. - Europe is a continent that comprises the westernmost part of Eurasia. Europe is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, and the Mediterranean Sea to the south. To the east and southeast, Europe is generally considered as separated from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways of the Turkish Straits. Yet the non-oceanic borders of Europea concept dating back to classical antiquityare arbitrary. The primarily physiographic term "continent" as applied to Europe also incorporates cultural and political elements whose discontinuities are not always reflected by the continent's current overland boundaries. - The BaikalAmur Mainline (Russian - (), "Baikalo-Amurskaya magistral", BAM) is a broad gauge railway line in Russia. Traversing Eastern Siberia and the Russian Far East, the long BAM runs about 610 to 770km (380 to 480 miles) north of and parallel to the Trans-Siberian railway. - 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 400km east of Moscow, where the Oka empties into the Volga. Population: - Amur Oblast is a federal subject of Russia (an oblast), located on the banks of the Amur and Zeya Rivers in the Russian Far East. The administrative center of the oblast, the city of Blagoveshchensk, is one of the oldest settlements in the Russian Far East, founded in 1856. It is a traditional center of trade and gold mining. The territory is accessed by two railways: the Trans-Siberian Railway and the BaikalAmur Mainline. As of the 2010 Census, the oblast's population was830,103. - Tom ( Russian : ) is a river in Russia , the left tributary of the river Zeya . Its length is 433 km. Its source is near the border between Amur Oblast and Khabarovsk Krai . It flows into the Zeya ( itself a tributary of the Amur ) between Svobodny and Blagoveshchensk . The city of Belogorsk lies on the Tom River . - The Sea of Okhotsk is a marginal sea of the western Pacific Ocean, lying between the Kamchatka Peninsula on the east, the Kuril Islands on the southeast, the island of Hokkaido to the south, the island of Sakhalin along the west, and a long stretch of eastern Siberian coast (the Shantar Sea) along the west and north. The northeast corner is the Shelikhov Gulf. The sea is named after Okhotsk, the first Russian settlement in the Far East. - Khabarovsk Krai is a federal subject of Russia (a krai), located in the Russian Far East. It lies mostly in the basin of the lower Amur River, but also occupies a vast mountainous area along the coastline of the Sea of Okhotsk, an arm of the Pacific Ocean. The administrative center of the krai is the city of Khabarovsk. Population: 1,343,869 (2010 Census). - A drainage basin or catchment basin is an extent or an area of land where all surface water from rain, melting snow, or ice converges to a single point at a lower elevation, usually the exit of the basin, where the waters join another body of water, such as a river, lake, reservoir, estuary, wetland, sea, or ocean. Thus if a tributary stream joins a brook that in turn joins a small river which is a tributary of a larger river, there is a series of successively larger (and lower elevation) drainage basins. For instance, the Missouri and Ohio rivers are within their own drainage basins and also within the drainage basin of the Mississippi River. - Zeya River (from indigenous Evenki word "dge" (blade)), 1,242km long, is a northern tributary of the Amur River. It rises in the Tokiysky Stanovik mountain ridge, a part of the Stanovoy Range. The first Russian to enter the area was Vassili Poyarkov. - Blagoveshchensk (lit. "the city of the Annunciation", ) is a city and the administrative center of Amur Oblast, Russia, located at the confluence of the Amur and Zeya Rivers, opposite to the Chinese city of Heihe. Population: - Khabarovsk is the largest city and the administrative center of Khabarovsk Krai, Russia, located from the Chinese border, at the confluence of the Amur and Ussuri Rivers, about north of Vladivostok. The city also became the administrative center of the Far Eastern Federal District of Russia in 2002. It is the second largest city in the Russian Far East, after Vladivostok. As of the 2010 Census, its population was577,441. - 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. Given the information above, choose from the list below the object entity that exhibits the relation 'mouth of the watercourse' with the subject 'tom river '. Choices: - amur - arctic ocean - atlantic ocean - baltic sea - black river - gulf of finland - indian ocean - lake baikal - main - mississippi river - neva - ob - pacific ocean - sea - sea of okhotsk - volga - zeya river
The answer to this question is:
zeya river