A three-level hierarchy typically refers to a structure or system that is organized into three distinct levels or layers. This concept is commonly used in various contexts, such as in organizational structures, information systems, and classification systems. Each level in the hierarchy has its own set of characteristics, functions, or roles.. 

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A three-level hierarchy typically refers to a structure or system that is organized into three distinct levels or layers. This concept is commonly used in various contexts, such as in organizational structures, information systems, and classification systems. Each level in the hierarchy has its own set of characteristics, functions, or roles.

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