Question: who was killed in the battle of little bighorn
[{'answer': 'Custer', 'provenance': [{'wikipedia_id': '56126', 'title': 'Battle of the Little Bighorn', 'start_paragraph_id': 1, 'start_character': 146, 'end_paragraph_id': 1, 'end_character': 152, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'two of his brothers', 'provenance': [{'wikipedia_id': '56126', 'title': 'Battle of the Little Bighorn', 'start_paragraph_id': 2, 'start_character': 538, 'end_paragraph_id': 2, 'end_character': 557, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'a nephew', 'provenance': [{'wikipedia_id': '56126', 'title': 'Battle of the Little Bighorn', 'start_paragraph_id': 2, 'start_character': 559, 'end_paragraph_id': 2, 'end_character': 567, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'a brother - in - law'}, {'provenance': [{'wikipedia_id': '56126', 'title': 'Battle of the Little Bighorn', 'start_paragraph_id': 2, 'start_character': 4, 'end_paragraph_id': 2, 'end_character': 735, 'bleu_score': 0.806902962245794, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9409656027921680638}, 'section': 'Section::::Abstract.'}]}]