Question: who is the japanese ambassador to the us
[{'answer': 'Shinsuke J. Sugiyama', 'provenance': [{'wikipedia_id': '29347462', 'title': 'List of ambassadors of Japan to the United States', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '29347462', 'title': 'List of ambassadors of Japan to the United States', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 130, 'bleu_score': 0.9021315316859231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15791860540323919266}, 'section': 'Section::::Abstract.'}]}]