Question: when does blood flow occur through the coronary circulation
[{'answer': 'when healthy'}, {'provenance': [{'wikipedia_id': '146642', 'title': 'Coronary circulation', 'start_paragraph_id': 58, 'start_character': 97, 'end_paragraph_id': 58, 'end_character': 479, 'bleu_score': 0.837752244763835, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6058734654542078031}, 'section': 'Section::::Coronary anatomy.:Coronary arteries.\n'}]}]