Question: where did the term southern belle come from
[{'answer': 'South during the antebellum era', 'provenance': [{'wikipedia_id': '1858887', 'title': 'Southern belle', 'start_paragraph_id': 3, 'start_character': 49, 'end_paragraph_id': 3, 'end_character': 80, 'bleu_score': 1.0, 'section': 'Section::::Origin.\n'}]}, {'answer': 'young , unmarried woman in the plantation - owning upper class of Southern society'}, {'provenance': [{'wikipedia_id': '1858887', 'title': 'Southern belle', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 181, 'bleu_score': 0.9364250605898111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7916039459970356914}, 'section': 'Section::::Origin.\n'}]}]