Question: what archipelago nation divided the sea of japan from the pacific ocean
[{'answer': 'Japan', 'provenance': [{'wikipedia_id': '15575', 'title': 'Geography of Japan', 'start_paragraph_id': 0, 'start_character': 13, 'end_paragraph_id': 0, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]