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.

Over the last 20 years, the world has changed. It used to be that one could make a career out of working for one company. Today, the average worker stays at his or her job for barely four years.
economy

Says Harry Reid has a better voting attendance record than these three Congressmen!
candidates-biography

Russ Feingold voted against the law that protected our lakes and was the only Great Lakes senator to vote no.

energy