Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Passage: "I think it's a pretty positive development," said Ross Cowan, a financial analyst with Levesque Beaubien Geoffrion Inc., of the decision to concentrate on groceries. Mr. Lortie's departure, while sudden, was seen as inevitable in light of the shift in strategy. Question: What will now happen in the future? Events: ['think', 's', 'development', 'said', 'decision', 'concentrate', 'departure', 'seen', 'shift']
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
concentrate