TASK DEFINITION: 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.
PROBLEM: When did the last episode of seinfeld air?

SOLUTION: May 14, 1998

PROBLEM: How many episodes in madam secretary series 4?

SOLUTION: 22

PROBLEM: When was the first reality tv show aired?

SOLUTION:
April 30, 1945