Problem: Generate a sentence that contains a fact.
Sentence: sharp beaks are a kind of adaptation for catching prey
Problem: Randomly generate a fact.

Random fact: as state of matter changes , mass will not change
Generate a sentence that answers this question: "Jays find nutrition in".

Answer: a tree is a source of food for birds in an ecosystem
question: What sentence would provide a factual answer to this question: "A crane starts off weighing thirty pounds, then later weighs twenty pounds. When travelling, the crane will fly"

answer: as the weight of an animal decreases , that animal will fly more easily
Problem: What is a random fact?

Answer: a balance is used for measuring weight of a substance
Problem: Generate a sentence that contains a fact.
Sentence:
melting means changing from a solid into a liquid by adding heat energy