Question: what is the liquid in blood culture bottles
[{'answer': 'thioglycollate broth', 'provenance': [{'wikipedia_id': '1250090', 'title': 'Blood culture', 'start_paragraph_id': 9, 'start_character': 199, 'end_paragraph_id': 9, 'end_character': 219, 'bleu_score': 1.0, 'section': 'Section::::Method.\n'}]}, {'provenance': [{'wikipedia_id': '1250090', 'title': 'Blood culture', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 219, 'bleu_score': 0.9451524926983921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11975993631117170934}, 'section': 'Section::::Method.\n'}]}]