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.

Ex Input:
Gas prices have doubled because Obama opposed exploring for energy in Alaska. He gave millions of tax dollars to Solyndra, which then went bankrupt. And he blocked the Keystone pipeline. So we will all pay more at the pump.

Ex Output:
climate-change


Ex Input:
"Bill McCollum holds the same position on (embryonic stem cell research) as Barack Obama."

Ex Output:
abortion


Ex Input:
Greece has a GDP the size of the Dallas-Fort Worth Metroplex.

Ex Output:

economy