Blue sky looked blue.
Meaning: This sentence is a simple statement of fact. It tells us that a blue sky had the color blue.
Choice of Words: Sky is a noun that refers to the expanse of air and space that surrounds the earth. Blue is an adjective that means having the color of the clear sky or the sea. Looked is a verb that means to direct one's gaze or attention. Blue is an adjective that means having the color of the clear sky or the sea. When you put them together, "Blue sky looked blue" tells a simple story about a blue sky looking blue.
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