TASK DEFINITION: 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.
PROBLEM: The Consumer Financial Protection Bureau has no congressional oversight.

SOLUTION: congressional-rules

PROBLEM: A bill to advance the Keystone XL Pipeline is an earmark under House rules.

SOLUTION: climate-change

PROBLEM: Just 400 Americans -- 400 -- have more wealth than half of all Americans combined.

SOLUTION:
economy