Question: the 2 most abundant gases in our atmosphere
[{'answer': 'water vapor', 'provenance': [{'wikipedia_id': '21350772', 'title': 'Greenhouse gas', 'start_paragraph_id': 1, 'start_character': 228, 'end_paragraph_id': 1, 'end_character': 239, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'carbon dioxide', 'provenance': [{'wikipedia_id': '21350772', 'title': 'Greenhouse gas', 'start_paragraph_id': 1, 'start_character': 241, 'end_paragraph_id': 1, 'end_character': 255, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'methane', 'provenance': [{'wikipedia_id': '21350772', 'title': 'Greenhouse gas', 'start_paragraph_id': 1, 'start_character': 257, 'end_paragraph_id': 1, 'end_character': 264, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'nitrous oxide', 'provenance': [{'wikipedia_id': '21350772', 'title': 'Greenhouse gas', 'start_paragraph_id': 1, 'start_character': 266, 'end_paragraph_id': 1, 'end_character': 279, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'ozone', 'provenance': [{'wikipedia_id': '21350772', 'title': 'Greenhouse gas', 'start_paragraph_id': 1, 'start_character': 284, 'end_paragraph_id': 1, 'end_character': 289, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21350772', 'title': 'Greenhouse gas', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 484, 'bleu_score': 0.718955428896576, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16168233567391993509}, 'section': 'Section::::Abstract.'}]}]