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? If you are still confused, see the following example:
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'].
Solution: approved, paid
Reason: 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".

Now, solve this instance: Passage: The Standard & Poor' s 500 index was up 2.67, or 0.22 percent, at 1,222.81, and the Nasdaq composite index advanced 8.81, or 0.41 percent, to 2,178.24. Advancing issues led decliners by about 9 to 4 on the New York Stock Exchange, where volume of 1.47 billion shares lagged the 1. Question: What happened before the S&P was up? Events: ['up', 'advanced', 'led', 'lagged', 'Advancing']
Student:
led