Question: when did a volcano last erupt in canada
[{'answer': '1904', 'provenance': [{'wikipedia_id': '9414134', 'title': 'Volcanology of Canada', 'start_paragraph_id': 53, 'start_character': 395, 'end_paragraph_id': 53, 'end_character': 399, 'bleu_score': 1.0, 'section': 'Section::::Recent activity.\n'}]}, {'provenance': [{'wikipedia_id': '9414134', 'title': 'Volcanology of Canada', 'start_paragraph_id': 53, 'start_character': 0, 'end_paragraph_id': 53, 'end_character': 1336, 'bleu_score': 0.92567969869448, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 723122758014192457}, 'section': 'Section::::Recent activity.\n'}]}]