Definition: In this task, you are given a statement spoken by a politician in natural language. Your task is to generate the subject of the discussion for the given statement. The subject generated is not necessarily a part of the given input. Your answer should contain one or more words.
Input: "Fifteen years ago, the assets of the six largest banks in this country totaled 17 percent of GDP ... The assets of the six largest banks in the United States today total 63 percent of GDP."

abc-news-week