Question: how long do you have to be in the korean army
[{'answer': 'about two years'}, {'provenance': [{'wikipedia_id': '27781946', 'title': 'Conscription in South Korea', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 231, 'bleu_score': 0.715256395311877, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14088285999536795863}, 'section': 'Section::::Abstract.'}]}]