Practical 16 : Categorize the following relationships into generalization, aggregation or association.

[A] A country has a capital city

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[B] A dining philosopher uses a fork

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[C] A file is an ordinary file or a directory file

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[D] Files contains records

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[E] A polygon is composed of an ordered set of points

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[F] A drawing object is text, a geometrical object, or a group

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[G] A person uses a computer language on a object

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[H] Modems and keyboards are input/output devices

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[I] Classes may have several attributes

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[J] A person plays for a team in a certain year

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[K] A route connects two cities

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[L] A student takes a course from a professor

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