Meaning: This sentence tells a story about a warm sun that is shining brightly in the sky. It shows the sun's temperature, its brightness, and the location where it is shining.
Choice of Words: The words in this sentence are chosen to convey the temperature of the sun, its brightness, and its location. "Warm" describes the sun's temperature, "shines" indicates its action, "brightly" shows its brightness, "in" indicates its location, and "sky" is the place where it is shining.