Question: who is the murderer in then there were none
[{'answer': 'Wargrave', 'provenance': [{'wikipedia_id': '4302172', 'title': 'Agatha Christie: And Then There Were None', 'start_paragraph_id': 13, 'start_character': 284, 'end_paragraph_id': 13, 'end_character': 292, 'bleu_score': 1.0, 'section': 'Section::::Synopsis.:Setting and characters.\n'}]}, {'provenance': [{'wikipedia_id': '4302172', 'title': 'Agatha Christie: And Then There Were None', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 648, 'bleu_score': 0.982060959997838, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5241349059774999319}, 'section': 'Section::::Synopsis.:Plot.\n'}]}]