Question: when did residential schools start and end in canada
[{'answer': '1876', 'provenance': [{'wikipedia_id': '949755', 'title': 'Canadian Indian residential school system', 'start_paragraph_id': 2, 'start_character': 131, 'end_paragraph_id': 2, 'end_character': 135, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '1996', 'provenance': [{'wikipedia_id': '949755', 'title': 'Canadian Indian residential school system', 'start_paragraph_id': 2, 'start_character': 925, 'end_paragraph_id': 2, 'end_character': 929, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '949755', 'title': 'Canadian Indian residential school system', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 929, 'bleu_score': 0.9748099096887751, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4161605459201993450}, 'section': 'Section::::Abstract.'}]}]