Input: What comedian hit the TV screen in 1951 with the NBC afternoon show Time for Ernie ?

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


Input: What is the origin of thank you notes ?

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


Input: What was cash-conscious Colonel Edwin L. Drake the first to drill ?

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