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.

Input: Consider Input: Passage: Technicians at the ministry of planning said that the building had collapsed on Tuesday because workers had failed to observe construction regulations. After the previous accidents, the local press blamed greedy proprietors for erecting buildings with the sole aim of cutting costs at the expense of safety. Question: What events occurred after the building collapsed? Events: ['said', 'collapsed', 'failed', 'observe', 'accidents', 'blamed', 'erecting', 'cutting']

Output: said

Input: Consider Input: Passage: Xinhua correspondent saw that a policeman was hit by rocks and was put on an ambulance. The clash took place only several blocks away from the hotel where the Summit of the Americas is held. Question: What event has already finished? Events: ['saw', 'hit', 'put', 'clash']

Output: saw

Input: Consider Input: Passage: "I have a dream that one day, that one of them compete for South Africa in the Olympic games," he says. Question: What happened after the dream? Events: ['have', 'dream', 'day', 'compete', 'games', 'says']
Output: says