Examlex
How is a composite attribute of an entity mapped into a relation?
Oxygen
A chemical element essential for most forms of life on Earth, vital for cellular respiration and a component of water.
Meteorites
Space rocks that survive the passage through Earth's atmosphere and land on the surface.
Organic Compounds
Organic compounds are chemicals that contain carbon atoms bonded to other elements, primarily hydrogen, and are found in all living organisms.
Organic Compounds
Chemical compounds containing carbon atoms bonded to hydrogen atoms, often along with other elements, essential for life on Earth.
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