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: Finance Minister Palaniappan Chidambaram's widely-acclaimed pro-reform budget, unveiled in parliament on February 28, slashed taxes and promised to reduce the fiscal deficit. The personal tax rate was slashed from 40 to 30 percent, to the cheers of the rich, while corporate tax for domestic firms was reduced from 40 to 35 percent. Question: What happened before they reduce? Events: ['widely-acclaimed', 'budget', 'unveiled', 'slashed', 'promised', 'reduce', 'slashed', 'cheers', 'reduced']
promised