Question: a coelomate animal has a body cavity that is completely lined by what kind of tissue
[{'answer': 'mesodermal epithelium'}, {'provenance': [{'wikipedia_id': '75003', 'title': 'Coelom', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 257, 'bleu_score': 0.799035636533382, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9334471799155574827}, 'section': 'Section::::Abstract.'}]}]