Question: where can you find bacteria that are not harmful
[{'answer': 'the gut flora', 'provenance': [{'wikipedia_id': '9028799', 'title': 'Bacteria', 'start_paragraph_id': 5, 'start_character': 28, 'end_paragraph_id': 5, 'end_character': 41, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '9028799', 'title': 'Bacteria', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1026, 'bleu_score': 0.9553422549040681, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14437444569822512433}, 'section': 'Section::::Abstract.'}]}]