Problem: Generate a sentence that contains a fact.
Sentence: an animal requires shelter
Problem: Randomly generate a fact.

Random fact: An example of a seasonal change is an animal growing thick fur for keeping warm in the winter
Generate a sentence that answers this question: "A tone is made when a hammer makes contact with".

Answer: tapping two objects together causes the particles in those objects to vibrate
question: What sentence would provide a factual answer to this question: "What rock is likely to be more mechanically weathered?"

answer: mechanical weathering is when rocks are broken down by mechanical means
Problem: What is a random fact?

Answer: an animal requires enough nutrients to maintain good health
Problem: Generate a sentence that contains a fact.
Sentence:
a moth undergoes metamorphosis