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: Long-term federal investment in U.S. airports is urgent because there was a recent survey of the top airports in the world, and there was not a single U.S. airport that came in the top 25.

federal-budget