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: "For every single illegal immigrant family in this country, it costs $20,000 it costs us $20,000; $20,000 in infrastructural costs. They pay about $10,000 in taxes."

immigration