Question: who led a successful marxist revolution in north korea
[{'answer': 'Alexandra Kim', 'provenance': [{'wikipedia_id': '14487612', 'title': 'Communism in Korea', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Early Korean communism.\n'}]}, {'provenance': [{'wikipedia_id': '14487612', 'title': 'Communism in Korea', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 568, 'bleu_score': 0.9516391630120881, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 615202884748742530}, 'section': 'Section::::Early Korean communism.\n'}]}]