Question: who was president of the united states in 1886
[{'answer': 'Grover Cleveland', 'provenance': [{'wikipedia_id': '24806123', 'title': '1886 in the United States', 'start_paragraph_id': 4, 'start_character': 23, 'end_paragraph_id': 4, 'end_character': 39, 'bleu_score': 1.0, 'section': 'Section::::Incumbents.:Federal Government.\n'}]}, {'provenance': [{'wikipedia_id': '24806123', 'title': '1886 in the United States', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 51, 'bleu_score': 0.6803749333171201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12636844676904697487}, 'section': 'Section::::Incumbents.:Federal Government.\n'}]}]