Input: What four-legged creature did a Cornell University study say would make man 's best companion in space ?

What kind of thing would answer this question?
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Output: entity

Input: What does a red flag mean in auto racing ?

What kind of thing would answer this question?
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Output: description

Input: What former major-league left-handed baseball pitcher was known as '' Space Man '' ?

What kind of thing would answer this question?
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Output:
human