question: What can be used for transportation?
choices.text: trailers and boats hitches couches trees and flowers chemical messengers potassium cats air masses
choices.label: A B C D E F G H
fact2: Trailers and boats are counted as a private vehicles.
combinedfact: Trailers and boats are used for transportation.
formatted_question: What can be used for transportation? (A) trailers and boats (B) hitches (C) couches (D) trees and flowers (E) chemical messengers (F) potassium (G) cats (H) air masses