Question: who has the oldest navy in the world
[{'answer': 'The Spanish', 'provenance': [{'wikipedia_id': '21533', 'title': 'Navy', 'start_paragraph_id': 64, 'start_character': 0, 'end_paragraph_id': 64, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Naval infantry.\n'}]}, {'provenance': [{'wikipedia_id': '21533', 'title': 'Navy', 'start_paragraph_id': 64, 'start_character': 0, 'end_paragraph_id': 64, 'end_character': 376, 'bleu_score': 0.9684940092844061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9642814747449224083}, 'section': 'Section::::Naval infantry.\n'}]}]