Question: who boarded the white car on a train leading to the separate but equal doctrine
[{'answer': 'Homer Plessy', 'provenance': [{'wikipedia_id': '210031', 'title': 'Separate but equal', 'start_paragraph_id': 15, 'start_character': 9, 'end_paragraph_id': 15, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Plessy v. Ferguson.\n'}]}, {'provenance': [{'wikipedia_id': '210031', 'title': 'Separate but equal', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 432, 'bleu_score': 0.886330638178716, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15860589659352968723}, 'section': 'Section::::Plessy v. Ferguson.\n'}]}]