Information:  - Russian ("", pronounced ) is an East Slavic language and an official language in Russia, Belarus, Kazakhstan, Kyrgyzstan and many minor or unrecognised territories. It is an unofficial but widely spoken language in Ukraine and Latvia, and to a lesser extent, the other countries that were once constituent republics of the Soviet Union and former participants of the Eastern Bloc. Russian belongs to the family of Indo-European languages and is one of the four living members of the East Slavic languages. Written examples of Old East Slavonic are attested from the 10th century and beyond.  - Belarusians ("bielarusy"), or Byelorussians, are an East Slavic ethnic group who are native to modern-day Belarus and the immediate region. There are over 9.5 million people who proclaim Belarusian ethnicity worldwide, with overwhelming majority residing either in Belarus or the adjacent countries where they are an autochthonous minority.  - The Tatars are a Turkic people living in Asia and Europe who were one of the five major tribal confederations ("khanlig") in the Mongolian plateau in the 12th century CE. The name "Tatar" first appears in written form on the Kul Tigin monument as  ("TaTaR"). Historically, the term "Tatars" was applied to a variety of Turco-Mongol semi-nomadic empires who controlled the vast region known as Tartary. More recently, however, the term refers more narrowly to people who speak one of the Turkic languages.  - Russians ("russkiye") are an East Slavic ethnic group native to Eastern Europe. The majority of Russians inhabit the nation state of Russia, while notable minorities exist in Ukraine, Kazakhstan, and other former Soviet states such as Belarus. A large Russian diaspora exists all over the world, with notable numbers in the United States, Germany, Israel, and Canada. Russians are the most numerous ethnic group in Europe.  - Belarus ( lat. ', ), officially the Republic of Belarus, formerly known by its Russian name Byelorussia (though this name is no longer used in Belarus itself, even in Russian language), is a landlocked country in Eastern Europe bordered by Russia to the northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Its capital and most populous city is Minsk. Over 40% of its is forested. Its strongest economic sectors are service industries and manufacturing. Until the 20th century, different states at various times controlled the lands of modern-day Belarus, including the Principality of Polotsk (11th to 14th centuries), the Grand Duchy of Lithuania, the PolishLithuanian Commonwealth, and the Russian Empire.  - The Russian diaspora is the global community of ethnic Russians. The Russian speaking ("Russophone") diaspora are the people for whom Russian language is the native language, regardless of whether they are ethnic Russians or, for example, Belarusians, Tatars, Jews. The number of ethnic Russians living outside the Russian Federation is estimated at roughly between 20 and 30 million people (depending on the notion of "ethnicity" used), the majority of them in countries of the Former Soviet Union; about 30 million native speakers of Russian are estimated to live outside the Russian Federation (compared to 147 million living within the Russian Federation).  - Russians in Hong Kong form one of the territory 's smaller groups of expatriates and a minor portion of the worldwide Russian diaspora . Many Russians from China passed through Hong Kong in the 1950s through 1970s on their way to resettlement in Australia , Brazil , and Canada .    What is the relationship between 'russians in hong kong' and 'ethnic group'?
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