Problem: Generate a sentence that contains a fact.
Sentence: protein is used to repair cells by the human body

Problem: Generate a sentence that contains a fact.
Sentence: dead organisms are the source of nutrients for decomposers

Problem: Generate a sentence that contains a fact.
Sentence: pollution is a source of pollutants

Problem: Generate a sentence that contains a fact.
Sentence:
if one mineral can scratch another mineral then that other mineral is softer than that one mineral