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.

[EX Q]: "We have solved the problem. ... Scientists are now saying leave the nuclear waste where it is."
[EX A]: energy

[EX Q]: In renewable and advanced energy manufacturing projects, Ohio now ranks first among the 50 states.
[EX A]: energy

[EX Q]: My opponent, in 2008, had contributions investigated by the federal government.
[EX A]:
campaign-finance