Question: who discovered the fact that south america was a separate continent
[{'answer': 'Amerigo Vespucci', 'provenance': [{'wikipedia_id': '19630739', 'title': 'Continent', 'start_paragraph_id': 50, 'start_character': 9, 'end_paragraph_id': 50, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::History of the concept.:European arrival in the Americas.\n'}]}, {'answer': 'Gonçalo Coelho', 'provenance': [{'wikipedia_id': '19630739', 'title': 'Continent', 'start_paragraph_id': 50, 'start_character': 30, 'end_paragraph_id': 50, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::History of the concept.:European arrival in the Americas.\n'}]}, {'provenance': [{'wikipedia_id': '19630739', 'title': 'Continent', 'start_paragraph_id': 50, 'start_character': 0, 'end_paragraph_id': 50, 'end_character': 965, 'bleu_score': 0.9876155018005031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18182543510599061381}, 'section': 'Section::::History of the concept.:European arrival in the Americas.\n'}]}]