Problem: Generate a sentence that contains a fact.
Sentence: sand dunes are made of sand

Problem: Generate a sentence that contains a fact.
Sentence: the thickness of the parts of an organism is an inherited characteristic

Problem: Generate a sentence that contains a fact.
Sentence: the moon orbiting the Earth causes the phases of the moon

Problem: Generate a sentence that contains a fact.
Sentence:
speed is a measure of distance travelled divided by time