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.
Input: We had 2 percent of the global market (for advanced batteries) when he (Obama) started. We now have 16 percent, headed to 40 percent by 2015.

environment