Question: what was race of horses with human powers called
[{'answer': 'centaur', 'provenance': [{'wikipedia_id': '7401', 'title': 'Centaur', 'start_paragraph_id': 1, 'start_character': 2, 'end_paragraph_id': 1, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7401', 'title': 'Centaur', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 178, 'bleu_score': 0.580071841854459, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2318639871793513860}, 'section': 'Section::::Abstract.'}]}]