Question: when did dominican republic gain independence from haiti
[{'answer': 'February 27 , 1844', 'provenance': [{'wikipedia_id': '2165902', 'title': 'Dominican War of Independence', 'start_paragraph_id': 20, 'start_character': 3, 'end_paragraph_id': 20, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::War of Independence.\n'}]}, {'provenance': [{'wikipedia_id': '2165902', 'title': 'Dominican War of Independence', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 451, 'bleu_score': 0.9731482306711111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11611957910008370765}, 'section': 'Section::::Abstract.'}]}]