Question: which continent was the last one to be settled by humans starting around 12 000 years ago
[{'answer': 'North and South America', 'provenance': [{'wikipedia_id': '55974447', 'title': 'Settlement of the Americas', 'start_paragraph_id': 2, 'start_character': 89, 'end_paragraph_id': 2, 'end_character': 112, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]