question: What can be used to navigate?
choices.text: music backbones astrology cilia magic sponges astronomy lamphreys
choices.label: A B C D E F G H
fact2: Of course, astronomers also study stars.
combinedfact: astronomy can be used to navigate
formatted_question: What can be used to navigate? (A) music (B) backbones (C) astrology (D) cilia (E) magic (F) sponges (G) astronomy (H) lamphreys