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: "The attack was carried out by one of our mujahedin (holy warriors)," Mohammed Hanif said by telephone. "The actual target was the parliament building but when he saw lots of security outside, he changed his target to the NATO convoy," he said.
What event has already finished?