Problem: Randomly generate a fact.

Random fact: plucking a string can cause that string to vibrate
Generate a sentence that answers this question: "A mouse give birth to ____ while a bird give birth to ____".

Answer: a mouse gives birth to live young
question: What sentence would provide a factual answer to this question: "Coal and oil directly removed from the ground are"

answer: if something is a raw material in a process then that something is required for that process
Problem: What is a random fact?

Answer: a greenhouse is used to protect plants from the cold
Problem: Generate a sentence that contains a fact.

natural gas is a source of heat by burning
Problem: Generate a sentence that contains a fact.
ethanol sometimes is made of corn