Question: where is your heart located in our body
[{'answer': 'in the middle mediastinum', 'provenance': [{'wikipedia_id': '36808', 'title': 'Heart', 'start_paragraph_id': 7, 'start_character': 28, 'end_paragraph_id': 7, 'end_character': 53, 'bleu_score': 1.0, 'section': 'Section::::Structure.:Location and shape.\n'}]}, {'provenance': [{'wikipedia_id': '36808', 'title': 'Heart', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 742, 'bleu_score': 0.9580586225500781, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11366330970487513111}, 'section': 'Section::::Structure.:Location and shape.\n'}]}]