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 Input:
If every house in Florida had a solar-heated water tank, that would eliminate consumption by 17 percent.

Ex Output:
energy

Ex Input:
China is going to have twice the number of submarines we have in just over a decade.

Ex Output:
china

Ex Input:
(Since 1990)every continent has seen substantial gains, with individual incomes growing by more than a third in every region of the developing world.

Ex Output:
economy