Question: where is the pericardium attached to the heart
[{'answer': 'epicardium', 'provenance': [{'wikipedia_id': '244944', 'title': 'Pericardium', 'start_paragraph_id': 8, 'start_character': 245, 'end_paragraph_id': 8, 'end_character': 255, 'bleu_score': 1.0, 'section': 'Section::::Structure.:Serous pericardium.\n'}]}, {'provenance': [{'wikipedia_id': '244944', 'title': 'Pericardium', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 424, 'bleu_score': 0.9694566079002921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1920534363822341848}, 'section': 'Section::::Structure.:Serous pericardium.\n'}]}]