Question: first african american to win a nobel peace prize
[{'answer': 'Ralph Bunche', 'provenance': [{'wikipedia_id': '19643079', 'title': 'List of black Nobel laureates', 'start_paragraph_id': 2, 'start_character': 158, 'end_paragraph_id': 2, 'end_character': 170, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19643079', 'title': 'List of black Nobel laureates', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 282, 'bleu_score': 0.7138802422118651, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1405133907373524034}, 'section': 'Section::::Abstract.'}]}]