In this task, a passage will be given and the goal is to generate a question about temporal relations based on that passage. A temporal relation describes the relation between two things with respect to time e.g., something happens/starts/terminates/... immediately/shortly/usually/... before/after/during/... something else.
Your question should include an event, or ask about an event, and should not be a yes/no question.

Passage: It- It just blew up in the air, and then we saw two fireballs go down to the, to the water, and there was a big small, ah, smoke, from ah, coming up from that. At one point, when it became clear controllers could not contact the plane, someone said a prayer.
What event has already finished?