CONTINENTS (WORLD)
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BTWORLD, EARTH (PHYSIOGEOGRAPHIC DESIGNATION)
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UDC(100*1)
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Descriptor GERKONTINENTE (WELT, ERDE)
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Descriptor ENGCONTINENTS (WORLD)
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Descriptor FRECONTINENTS (TERRE)
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NTAFRICA
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NTAMERICA (NORTH AND SOUTH AMERICA)
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NTANTARCTIC TERRITORIES + SOUTH POLAR REGIONS (ANTARCTIC TERRITORIES)
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NTASIA
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NTAUSTRALIA-OCEANIA
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NTEUROPE