Who is the most prolific author of all time?
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Mark Twain was a writer.
Mark Twain is a writer .
Who is the most prolific author of all time?</s> [unused1]Mark Twain                [unused2] was a writer.
Who is the most prolific author of all time?</s>Mark Twain was a writer.
Who is the most prolific author of all time?</s> [unused1]Mark Twain                [unused2] is a writer .
Who is the most prolific author of all time?</s>Mark Twain is a writer .
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Who is the most prolific author of all time?</s>writer,0,writer,writer,0,Mark Twain,Mark Twain,occupation,writer,Mark Twain,0,Mark Twain