question: What caused Darwin to change his mind about the unbridgeable gap between animals and humans ?
answer: their relatives on the island seemed `` miserable , degraded savages ''
turker_answer: Darwin changed his mind about the unbridgeable gap between animals and humans because their relatives on the island seemed like `` miserable , degraded savages . ''
rule-based: Their relatives on the island seemed `` miserable , degraded savages caused Darwin to change his mind about the unbridgeable gap between animals and humans .