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| иерархии категорий | |||
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| иерархия категорий (A hierarchy within a category where one category is specified as a parent and one (or more) category is a child. A category cannot be both a parent and a child (descendent) of the same category) | |||
| иерархия категорий | |||
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category hierarchies : 6 phrases in 2 subjects |
| Information technology | 5 |
| Microsoft | 1 |