Q: 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: The station, when completed, will have a total of four solar arrays providing it with electricity. The Discovery mission is part of 14 shuttle flights NASA has planned over the next four years to finish the ISS by 2010, when the shuttle fleet, down to three vehicles, is to be retired. Question: What will have happened before the station is complete? Events: ['completed', 'have', 'providing', 'is', 'planned', 'finish', 'be']
A:
planned