question: Given the fact "the sun setting occurs once per day", what is the answer to "Which two events are guaranteed to each happen in a 24 hour cycle?"

answer: a large star appearing and disappearing

question: Given the fact "a closed circuit has continuous path", what is the answer to "a closed circuit"

answer: is uninterrupted

question: Given the fact "a predator eats other animals for food", what is the answer to "What eats other animals for food?"

answer: marlins

question: Given the fact "the Grand Canyon was formed by the Colorado River flowing over long periods of time", what is the answer to "the Grand Canyon was formed by the Colorado River doing what over long periods of time?"

answer:
moving steadily