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 created the classification system that divides galaxies by shape

A: Edwin Hubble
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Q: who took the picture of the windows xp background

A: Charles O'Rear
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Q: how much aid does us give to other countries

A:
$43.10 billion
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