Problem: Generate a sentence that contains a fact.
Sentence: the moon is the celestial object that is closest to the Earth
Problem: Randomly generate a fact.

Random fact: a body of water is a source of water
Generate a sentence that answers this question: "Which uses gills to breathe?".

Answer: gills are used for breathing water by aquatic animals
question: What sentence would provide a factual answer to this question: "The moon looks different in different parts of"

answer: the phases of the Moon change the appearance of the Moon
Problem: What is a random fact?

Answer: an incandescent light bulb converts electricity into heat by sending electricity through a filament
Problem: Generate a sentence that contains a fact.
Sentence:
a ruler is used for measuring the length of an object