Question: what is the name of the first extinction
[{'answer': 'Great Oxygenation Event', 'provenance': [{'wikipedia_id': '9813', 'title': 'Extinction event', 'start_paragraph_id': 3, 'start_character': 4, 'end_paragraph_id': 3, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '9813', 'title': 'Extinction event', 'start_paragraph_id': 3, 'start_character': 73, 'end_paragraph_id': 3, 'end_character': 795, 'bleu_score': 0.924945179828881, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1020823511407949274}, 'section': 'Section::::Abstract.'}]}]