Problem: Generate a sentence that contains a fact.
Sentence: the arctic environment is covered in snow

Problem: Generate a sentence that contains a fact.
Sentence: as population of prey decreases , the population of predators will decrease

Problem: Generate a sentence that contains a fact.
Sentence: the length of the hair of an animal is an acquired characteristic

Problem: Generate a sentence that contains a fact.
Sentence:
a pulley is used to lift a flag on a flagpole