Question: who became president of the republic of china after the overthrow of the qing dynasty
[{'answer': 'Sun Yat - sen', 'provenance': [{'wikipedia_id': '268997', 'title': 'History of the Republic of China', 'start_paragraph_id': 58, 'start_character': 430, 'end_paragraph_id': 58, 'end_character': 443, 'bleu_score': 1.0, 'section': 'Section::::Warlord Era (1916–1928).:Chiang consolidates power.\n'}]}, {'provenance': [{'wikipedia_id': '268997', 'title': 'History of the Republic of China', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 435, 'bleu_score': 0.9716239638199891, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3684585381800613824}, 'section': 'Section::::Early republic (1912–1916).:Founding of the republic.\n'}]}]