Question: when did china become the people's republic of china
[{'answer': 'October 1 , 1949', 'provenance': [{'wikipedia_id': '4372722', 'title': "History of the People's Republic of China", 'start_paragraph_id': 3, 'start_character': 221, 'end_paragraph_id': 3, 'end_character': 237, 'bleu_score': 1.0, 'section': 'Section::::1949–1976: Socialist transformation under Mao Zedong.\n'}]}, {'provenance': [{'wikipedia_id': '4372722', 'title': "History of the People's Republic of China", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 505, 'bleu_score': 0.977139080690077, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12196997429330229123}, 'section': 'Section::::Abstract.'}]}]