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:
Says a federal judge sanctions Tennessee birther lawyer for bringing a frivolous lawsuit.

Ex Output:
obama-birth-certificate


Ex Input:
As a percentage of our gross domestic product, the defense budget remains just 3.6 percent. This figure is low by all historical standards.

Ex Output:
deficit


Ex Input:
We expanded charter schools.

Ex Output:

education