Question: what do fat cells do for the body
[{'answer': 'primarily compose adipose tissue', 'provenance': [{'wikipedia_id': '625229', 'title': 'Adipocyte', 'start_paragraph_id': 1, 'start_character': 70, 'end_paragraph_id': 1, 'end_character': 102, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'storing energy as fat', 'provenance': [{'wikipedia_id': '625229', 'title': 'Adipocyte', 'start_paragraph_id': 1, 'start_character': 119, 'end_paragraph_id': 1, 'end_character': 140, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '625229', 'title': 'Adipocyte', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 252, 'bleu_score': 0.8081351143201381, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10691463803928131603}, 'section': 'Section::::Abstract.'}]}]