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.

Example Input: Keystone means unlocking the Canadian tar sands.
Example Output: energy

Example Input: Says Chris Koster opposes right-to-work efforts because he has taken $8 million from union bosses.
Example Output: campaign-finance

Example Input: Not a single segment of the proposed Beltline intersects the MARTA system at MARTA stations.
Example Output:
transportation