Question: when did the first bony fish appear on earth
[{'answer': 'about 419 million years ago', 'provenance': [{'wikipedia_id': '37824359', 'title': 'Evolution of fish', 'start_paragraph_id': 38, 'start_character': 127, 'end_paragraph_id': 38, 'end_character': 154, 'bleu_score': 1.0, 'section': 'Section::::Jawed fish.:Bony fishes.\n'}]}, {'provenance': [{'wikipedia_id': '37824359', 'title': 'Evolution of fish', 'start_paragraph_id': 38, 'start_character': 0, 'end_paragraph_id': 38, 'end_character': 500, 'bleu_score': 0.936655266249045, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12323072680568249092}, 'section': 'Section::::Jawed fish.:Bony fishes.\n'}]}]