Question: the tuba is the largest member of which musical family
[{'answer': 'the brass family', 'provenance': [{'wikipedia_id': '30961', 'title': 'Tuba', 'start_paragraph_id': 1, 'start_character': 77, 'end_paragraph_id': 1, 'end_character': 93, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30961', 'title': 'Tuba', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 384, 'bleu_score': 0.570271288607154, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12449857448692092992}, 'section': 'Section::::Abstract.'}]}]