Question: during the ming dynasty which city was once again made the capital of china
[{'answer': 'Beijing', 'provenance': [{'wikipedia_id': '43449', 'title': 'Ming dynasty', 'start_paragraph_id': 1, 'start_character': 270, 'end_paragraph_id': 1, 'end_character': 277, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]