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.

A bill to advance the Keystone XL Pipeline is an earmark under House rules.
climate-change

Palin "stopped the Bridge to Nowhere."
transportation

On average, each U.S. military working dog saves the lives of between 150 and 200 servicemen and women over the span of his career.

animals