Question: when did the last chinese imperial dynasty end
[{'answer': '1912', 'provenance': [{'wikipedia_id': '25310', 'title': 'Qing dynasty', 'start_paragraph_id': 1, 'start_character': 152, 'end_paragraph_id': 1, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25310', 'title': 'Qing dynasty', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 380, 'bleu_score': 0.5919973781904231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2921971029085726060}, 'section': 'Section::::Abstract.'}]}]