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.

The top 1 percent (of income earners) paid 36.7 percent (of the taxes). ... The top 50 percent pay 97.7 percent.
income

In 2002, Iran was more or less an American ally.
foreign-policy

The United States is no longer top nation in the globe on infrastructure, having fallen to 15th.

infrastructure