Question: how old do you have to be to enlist in the army in korea
[{'answer': '18', 'provenance': [{'wikipedia_id': '27781946', 'title': 'Conscription in South Korea', 'start_paragraph_id': 1, 'start_character': 98, 'end_paragraph_id': 1, 'end_character': 100, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27781946', 'title': 'Conscription in South Korea', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 487, 'bleu_score': 0.9562774752345371, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3602432041508337456}, 'section': 'Section::::Requirements.:Enlistment and physical exam.\n'}]}]