Question: what is the main organs of the integumentary system
[{'answer': 'The skin', 'provenance': [{'wikipedia_id': '59660', 'title': 'Integumentary system', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 8, 'bleu_score': 1.0, 'section': 'Section::::Skin.\n'}]}, {'provenance': [{'wikipedia_id': '59660', 'title': 'Integumentary system', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 147, 'bleu_score': 0.8547305998833801, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4685243016989500437}, 'section': 'Section::::Skin.\n'}]}]