Question: what is the meaning of coa in biology
[{'answer': 'Coenzyme A', 'provenance': [{'wikipedia_id': '81611', 'title': 'Coenzyme A', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '81611', 'title': 'Coenzyme A', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 428, 'bleu_score': 0.8197070719560331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2083965937786280408}, 'section': 'Section::::Abstract.'}]}]