Question: when did the eruption of mount vesuvius occur
[{'answer': '79 AD', 'provenance': [{'wikipedia_id': '30752226', 'title': 'Eruption of Mount Vesuvius in 79', 'start_paragraph_id': 1, 'start_character': 64, 'end_paragraph_id': 1, 'end_character': 69, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]