question: order:delivery:sign
choices.label: A B C D
choices.text: waiting:boarding:security check recruit:training:hire rehearsal:tuning:playing load:aim:shoot
explanation: "order" first, then "delivery" and finally "sign" "security check" first, then "waiting" and then "boarding" first "recruit" then "hire" and finally "train" "tuning", "rehearsal" and "playing" have no chronological relationship. "load", "aim" and finally , "shoot"
relation: order delivery sign R5.2
relation: waiting boarding security check R5.2
relation: recruit training hire R5.2
relation: load aim shoot R5.2