Question: how many outer ring electrons does oxygen have
[{'answer': '6', 'provenance': [{'wikipedia_id': '19916615', 'title': 'Electron shell', 'start_paragraph_id': 2, 'start_character': 146, 'end_paragraph_id': 2, 'end_character': 147, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]