Question: who led the first voyage to circumnavigate the globe
[{'answer': 'Juan Sebastián Elcano', 'provenance': [{'wikipedia_id': '19914843', 'title': 'Ferdinand Magellan', 'start_paragraph_id': 1, 'start_character': 227, 'end_paragraph_id': 1, 'end_character': 248, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19914843', 'title': 'Ferdinand Magellan', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 248, 'bleu_score': 0.6094183098284001, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5735454478000753074}, 'section': 'Section::::Abstract.'}]}]