Definition: In this task, a passage will be given and the goal is to identify an event from the passage. An event is defined as a single word representing something that happened, is happening, or may happen. An event can be factual or hypothetical, positive or negative, certain or uncertain. While most events are based on verbs, an event can also be based on a noun (ex. storm, snow, rainfall) or a copula verb (is, was, been, etc.). The event must not be a pronoun or an adjective. For noun events with multiple words, use the last word in the phrase as event.
Input: Passage: Interestingly, the mission of Prince Bandar, current Saudi national security advisor, seems to directly conflict, on Iran, at least, with recent statements on Tehran by his successor as ambassador Prince Turki al-Faisal. Prince Turki set off a diplomatic mystery on Monday by suddenly resigning and leaving the United States for what were a Saudi official said were "personal reasons."

mystery