Problem: Generate a sentence that contains a fact.
Sentence: illness has a negative impact on an organism 's health

Problem: Generate a sentence that contains a fact.
Sentence: Matter in the gas phase has variable shape

Problem: Generate a sentence that contains a fact.
Sentence: harming an animal species causes that animal 's population to decrease

Problem: Generate a sentence that contains a fact.
Sentence:
the surface of the Moon contains mountains