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.

U.S. Sen. Kay Bailey Hutchison has voted nine separate times to raise the national debt ceiling.
economy

Obamacare is . . . the largest tax increase in the history of the world.
health-care

Our federal government has lent $2 billion to the state-owned oil company of Brazil to allow them to explore for oil and gas.

energy