Russia is part of Europe and Europe is made of different countries, but it can not "own" another country.
An enclave is a small part of a country that is entirely surrounded by the territory of another country. This results in the enclave being geographically separated from the main part of its own country.
Samoa is not part of any other country. It is its own independent country.
Singapore is in the Malaysian Peninsula. It is a sovereign country in its own right and it not part of another country.
Gabon is its own country; it is not part of a different country.
Italy, it's its own country.
No city is surrounded by another country without being in that city's own country. There may be cities on borders, however, not fully located in a foreign country otherwise the city would be a part of that nation!
It is part of Russia.
Canada is its own country.
Australia is its own country...
It is it's own country.
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