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\*.
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Question: what does mpv stand for in a cbc test

Answer: Mean platelet volume


Question: who plays helen of troy fall of a city

Answer: Bella Dayne


Question: who is the highest grossing director of all time

Answer:
Steven Spielberg