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 truth was revealed there in that report that showed there was no unlawful or unethical activity on my part."
candidates-biography

"We have solved the problem. ... Scientists are now saying leave the nuclear waste where it is."
energy

Says David Rivera received a $5,000 campaign contribution from Congressman Spencer Bachus, who is currently under House Ethics investigation for insider trading.

campaign-finance