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gptkb:Universal_Decimal_System
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4 [Unassigned]
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gptkb:Universal_Decimal_System
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6 Applied Sciences. Medicine. Technology
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gptkb:Universal_Decimal_System
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9 Geography. Biography. History
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gptkb:Universal_Decimal_System
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0 Generalities
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gptkb:Universal_Decimal_System
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5 Mathematics. Natural Sciences
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gptkb:Universal_Decimal_System
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2 Religion
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gptkb:Universal_Decimal_System
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7 The Arts. Recreation. Entertainment. Sport
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gptkb:Universal_Decimal_System
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1 Philosophy. Psychology
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gptkb:Universal_Decimal_System
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3 Social Sciences
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gptkb:Universal_Decimal_System
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8 Language. Linguistics. Literature
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