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: The main Russian car, popularly known as the Volga, costs just a third of the price of even a relatively modest German Audi to manufacture. Add extras, however, such as a foreign air-conditioning system and so on and the car could cost up to 57,000 dollars compared to 22,000 to 28,000 for the typical models favoured by the government. Question: What is happening while adding extras? Events: ['known', 'costs', 'manufacture', 'Add', 'cost', 'compared', 'favoured', 'could']
Solution:
known