Question: when was slavery abolished in the british caribbean
[{'answer': '1833', 'provenance': [{'wikipedia_id': '1978042', 'title': 'Slavery in the British and French Caribbean', 'start_paragraph_id': 29, 'start_character': 135, 'end_paragraph_id': 29, 'end_character': 139, 'bleu_score': 1.0, 'section': 'Section::::Abolition.\n'}]}, {'provenance': [{'wikipedia_id': '1978042', 'title': 'Slavery in the British and French Caribbean', 'start_paragraph_id': 29, 'start_character': 0, 'end_paragraph_id': 29, 'end_character': 416, 'bleu_score': 0.9712154609069981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10742355011886588391}, 'section': 'Section::::Abolition.\n'}]}]