In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Who took power by disobeying the roman senate?
Julius Caesar

Who presides over any impeachment trial of the president of the united states?
Chief Justice of the United States

How many states participate in the powerball lottery?

45