Examlex
In IDEF1X,a category cluster includes BLACK and WHITE,but does not show GREY,which is also a possible category.This is an IDEF1X:
Profundal Zone
A deep zone of a body of water where sunlight does not reach, typically found in lakes and often lacking in photosynthetic life.
Lake
a large body of water surrounded by land, usually freshwater, and larger and deeper than a pond.
Penetrate
To enter or force a way into or through something; to pierce.
Rich Soils
Rich soils are highly fertile soils that contain a wealth of organic matter, nutrients, and minerals, promoting vigorous plant growth.
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