question: starting:crossing the line
choices.label: A B C D
choices.text: ignition:adding coal ribbon cutting:ceremony sailing:anchoring ideation:finalization
explanation: "starting" occurs first, "crossing the line" occurs after, and "crossing the line" is the ending behavior. "ignition" occurs first, and "adding coal" occurs after, but "adding coal" is an intermediate step, and "adding coal" is not an end behavior. "ribbon cutting" is part of the "ceremony", but the "ceremony" is not the ending action. "anchoring" refers to anchoring in the water to make the ship stop, which is to stop sailing, not necessarily to end the voyage. "anchoring" does not necessarily mean the end of the behavior, and there is no definite sequence of occurrence between "sailing" and "anchoring". "ideation" happens first, "finalization" happens after, and "finalization" is the closing act.
relation: starting crossing the line R5.2
relation: ribbon cutting ceremony R2.3
relation: ideation finalization R5.2