You will be given a definition of a task first, then some input of the task.
In this task, you will be given a passage, a question and a list of single-word events identified from the passage. The goal is to point out all events from the given event list that can answer the question. If a question is unanswerable or none of the events answer the question, output should be empty.

Passage: Israel's policy of nuclear ambiguity dates back to the early 1960s, to an agreement struck with the United States and France. Under this policy, the Jewish state would not carry out any nuclear tests and would stay silent on the issue in order to prevent a nuclear arms race in the Middle East. Question: What event has already finished? Events: ['policy', 'struck', 'carry', 'tests', 'stay', 'prevent']
Output:
struck