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]: The presidents own advisers have said theres a war on coal.
[EX A]: energy

[EX Q]: There was just about zero press coverage of the 2007 Bush White House email controversy.
[EX A]: transparency

[EX Q]: Cap and trade legislation that Zack Space supported would cost the average household approximately $1,761 per year in increased energy rates.
[EX A]:
cap-and-trade