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.
One example is below.
Q: 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'].
A: approved, paid
Rationale: 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: Brazil and Russia agreed Thursday to develop cooperation in military, trade, space and energy affairs during a visit by Russia's Foreign Minister Sergei Lavrov, officials said. Reporters peppered Lavrov and his Brazilian counterpart, Celso Amorim, with questions about a proposed purchase of Russian-made military helicopters at a joint news conference. Question: What happened during the conference? Events: ['agreed', 'develop', 'cooperation', 'visit', 'said', 'peppered', 'questions', 'proposed', 'purchase', 'Russian-made', 'conference']
A:
questions