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.

[EX Q]: Who was the 20th prime minister of canada?
[EX A]: Jean Chretien

[EX Q]: How many times has australia won the cricket world cup?
[EX A]: Australia

[EX Q]: Who is the duke speaking to in the poem my last duchess?
[EX A]:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
envoy of the Count of Tyrol

