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.

Example input: Passage: I submitted the hit. The hit was approved, and then I was paid. Question: What happened after I submitted the hit? Events: ['submitted', 'approved', 'paid'].
Example output: approved, paid
Example explanation: From the passage, we can infer that events approved and paid happened after the event submitted. Therefore, the answer to this question is "approved, paid".
Q: Passage: "This kind of terrorist attack has to be condemned and condemned thoroughly," Rice said aboard the plane bringing her to Berlin, where she began a five-day European tour. "The Palestinian Authority has done so." Question: What did the Palestinian Authority do before the terrorist attack?  Events: ['attack', 'condemned', 'condemned', 'said', 'bringing', 'began', 'tour', 'done', 'has']
A: