Question: when did cuba become a protectorate of the us
[{'answer': 'Under the Treaty of Paris', 'provenance': [{'wikipedia_id': '5231073', 'title': 'Cuba–United States relations', 'start_paragraph_id': 2, 'start_character': 287, 'end_paragraph_id': 2, 'end_character': 312, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5231073', 'title': 'Cuba–United States relations', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 502, 'bleu_score': 0.9567517979328871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12457664667635876670}, 'section': 'Section::::Abstract.'}]}]