In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.

[Q]: when does lexi die in grey's anatomy
[A]: the eighth-season finale


[Q]: what is the microscopic unit of the kidney
[A]: The nephron


[Q]: who has hit the most grand slams in mlb history
[A]:
Alex Rodriguez