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: Federal Reserve policies have led to a 69 percent rise in corn prices, 44 percent rise in wheat prices and 15 percent spike in sugar prices over the last year.

agriculture