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: Palin "stopped the Bridge to Nowhere."

SOLUTION: transportation

PROBLEM: This years redistricting has been the most open, interactive and transparent redistricting process in Tennessee history.

SOLUTION: redistricting

PROBLEM: Mercury is used in vaccines, and there is no safe level of mercury.

SOLUTION:
public-health