question: When did Darwin publish his own explanation of the question of the evolution of man and ape ?
answer: Darwin published his own explanation in the Descent of Man ( 1871 )
turker_answer: Darwin published his own explanation of the question of the evolution of man and ape in the Descent of Man in 1871 .
rule-based: Darwin published his own explanation of the question of the evolution of man and ape in Darwin published his own explanation in the Descent of Man ( 1871 .