Question: when did the volcano in tenerife last erupt
[{'answer': '1909', 'provenance': [{'wikipedia_id': '565217', 'title': 'Teide', 'start_paragraph_id': 2, 'start_character': 360, 'end_paragraph_id': 2, 'end_character': 364, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '565217', 'title': 'Teide', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 507, 'bleu_score': 0.9766041382465441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16499548446787109786}, 'section': 'Section::::Historical eruptions.\n'}]}]