Question: the first known european to set foot on north america was
[{'answer': 'John Cabot', 'provenance': [{'wikipedia_id': '17020605', 'title': 'John Cabot', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]