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 did weed become legal for recreational use in colorado

A: January 2014
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Q: when is the world population expected to reach 8 billion

A: 2024
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Q: who played caroline in little house on the prairie

A:
Karen Trust Grassle
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