Question: what was the edict of nantes issued in an effort to do
[{'answer': 'promote civil unity', 'provenance': [{'wikipedia_id': '50467', 'title': 'Edict of Nantes', 'start_paragraph_id': 1, 'start_character': 301, 'end_paragraph_id': 1, 'end_character': 320, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '50467', 'title': 'Edict of Nantes', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 901, 'bleu_score': 0.9865312178338931, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16002234374073044613}, 'section': 'Section::::Abstract.'}]}]