Question: what type of acid is in coca cola
[{'answer': 'phosphoric acid', 'provenance': [{'wikipedia_id': '7491', 'title': 'Cola', 'start_paragraph_id': 4, 'start_character': 497, 'end_paragraph_id': 4, 'end_character': 512, 'bleu_score': 1.0, 'section': 'Section::::Flavorings.\n'}]}, {'answer': 'citric', 'provenance': [{'wikipedia_id': '7491', 'title': 'Cola', 'start_paragraph_id': 4, 'start_character': 539, 'end_paragraph_id': 4, 'end_character': 545, 'bleu_score': 1.0, 'section': 'Section::::Flavorings.\n'}]}, {'answer': 'other isolated acids', 'provenance': [{'wikipedia_id': '7491', 'title': 'Cola', 'start_paragraph_id': 4, 'start_character': 549, 'end_paragraph_id': 4, 'end_character': 569, 'bleu_score': 1.0, 'section': 'Section::::Flavorings.\n'}]}, {'provenance': [{'wikipedia_id': '7491', 'title': 'Cola', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 631, 'bleu_score': 0.7663087506156671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1395501785310144243}, 'section': 'Section::::Flavorings.\n'}]}]