Problem: Randomly generate a fact.

Random fact: a revolution of the moon around the Earth takes 1 month
Generate a sentence that answers this question: "A sugar cube in vinegar will".

Answer: An example of a chemical change is acid breaking down substances
question: What sentence would provide a factual answer to this question: "Which animal travels great distance as part of its instinctive behavior?"

answer: migration is an instinctive behavior
Problem: What is a random fact?

Answer: An example of an instinctive behavior is a baby bird pecking at its shell to hatch
Problem: Generate a sentence that contains a fact.

chemical reactions cause different substances to form
Problem: Generate a sentence that contains a fact.
scraping an object may cause small particles to break off of that object