Problem: Generate a sentence that contains a fact.
Sentence: pushing an object requires force

Problem: Generate a sentence that contains a fact.
Sentence: an animal usually requires a warm body temperature for survival

Problem: Generate a sentence that contains a fact.
Sentence: cutting down trees in a forest causes the number of trees to decrease in that forest

Problem: Generate a sentence that contains a fact.
Sentence:
a simple machine requires mechanical energy to function