Detailed Instructions: 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.
Problem:Passage: President Bush on Tuesday said the United States may extend its naval quarantine to Jordan's Red Sea port of Aqaba to shut off Iraq's last unhindered trade route. In another mediation effort, the Soviet Union said today it had sent an envoy to the Middle East on a series of stops to include Baghdad. Question: What happened before Bush spoke? Events: ['said', 'extend', 'quarantine', 'off', 'mediation', 'effort', 'said', 'sent', 'stops']
Solution: