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: who is first in line for king of england

A: Charles, Prince of Wales
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Q: who do the avengers fight in infinity war

A: Thanos
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Q: the centers of most cities became business areas after the invention of what

A:
skyscraper
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