Question: when did the white wedding dress tradition start
[{'answer': 'in the 19th century', 'provenance': [{'wikipedia_id': '460087', 'title': 'Wedding dress', 'start_paragraph_id': 1, 'start_character': 316, 'end_paragraph_id': 1, 'end_character': 335, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '460087', 'title': 'Wedding dress', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 409, 'bleu_score': 0.908502275267534, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3451427919629784246}, 'section': 'Section::::Abstract.'}]}]