Question: when did ragtime flourished in the united states
[{'answer': 'between 1895 and 1918'}, {'provenance': [{'wikipedia_id': '26553', 'title': 'Ragtime', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 176, 'bleu_score': 0.8498644646741501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15992715814572588176}, 'section': 'Section::::Abstract.'}]}]