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.

A bill that would halt the EPA from regulating greenhouse gases would help stop rising gas prices.
energy

Tens of thousands of Atlanta households pay more than 30 percent of their income towards rent.
housing

No candidate has run more negative ads in American history than Barack Obama did in 2008, especially in the general.

campaign-finance