What's the oldest book published by Mark Twain?
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John Marshall Clemens's father is Mark Twain, and he was born.
Mark Twain 's son is John Marshall Clemens , whose child is Mark Twain .
What's the oldest book published by Mark Twain?</s> [unused1]John Marshall Clemens                [unused2] 's father is Mark Twain, and he was born.
What's the oldest book published by Mark Twain?</s>John Marshall Clemens's father is Mark Twain, and he was born.
What's the oldest book published by Mark Twain?</s>Mark Twain 's son is [unused1]John Marshall Clemens                [unused2] , whose child is Mark Twain .
What's the oldest book published by Mark Twain?</s>Mark Twain 's son is John Marshall Clemens , whose child is Mark Twain .
What's the oldest book published by Mark Twain?</s>Mark Twain,0,Mark Twain,Mark Twain,father,[unused1]John Marshall Clemens[unused2],[unused1]John Marshall Clemens[unused2],child,Mark Twain,[unused1]John Marshall Clemens[unused2],0,[unused1]John Marshall Clemens[unused2]
What's the oldest book published by Mark Twain?</s>Mark Twain,0,Mark Twain,Mark Twain,father,John Marshall Clemens,John Marshall Clemens,child,Mark Twain,John Marshall Clemens,0,John Marshall Clemens