Question: when did north korea first launch a missile
[{'answer': '1984', 'provenance': [{'wikipedia_id': '5831012', 'title': 'List of North Korean missile tests', 'start_paragraph_id': 2, 'start_character': 91, 'end_paragraph_id': 2, 'end_character': 95, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]