Question: when did santo domingo liberate itself from haiti and change its name to dominican republic
[{'answer': '1844', 'provenance': [{'wikipedia_id': '8063', 'title': 'History of the Dominican Republic', 'start_paragraph_id': 1, 'start_character': 748, 'end_paragraph_id': 1, 'end_character': 752, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8063', 'title': 'History of the Dominican Republic', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 1025, 'bleu_score': 0.9881300380564421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6235191280569200175}, 'section': 'Section::::Abstract.'}]}]