Question: what gas in the stratosphere causes temperatures to increase with altitude
[{'answer': 'ozone', 'provenance': [{'wikipedia_id': '47454', 'title': 'Stratosphere', 'start_paragraph_id': 1, 'start_character': 360, 'end_paragraph_id': 1, 'end_character': 365, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47454', 'title': 'Stratosphere', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 1069, 'bleu_score': 0.51818784948469, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15366473063595584268}, 'section': 'Section::::Ozone and temperature.\n'}]}]