Question: what kind of leader does south korea have
[{'answer': 'President', 'provenance': [{'wikipedia_id': '98630', 'title': 'President of South Korea', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '98630', 'title': 'President of South Korea', 'start_paragraph_id': 1, 'start_character': 30, 'end_paragraph_id': 1, 'end_character': 1022, 'bleu_score': 0.8520754476544401, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2268258458408405237}, 'section': 'Section::::Abstract.'}]}]