Question: what is the deapest lake in the world
[{'answer': 'Baikal', 'provenance': [{'wikipedia_id': '7379631', 'title': 'List of lakes by depth', 'start_paragraph_id': 11, 'start_character': 22, 'end_paragraph_id': 11, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Greatest maximum depth by continent.\n'}]}]