Question: who was the first explorer in north america
[{'answer': 'Erik the Red', 'provenance': [{'wikipedia_id': '24490545', 'title': 'Exploration of North America', 'start_paragraph_id': 3, 'start_character': 125, 'end_paragraph_id': 3, 'end_character': 137, 'bleu_score': 1.0, 'section': 'Section::::Pre-Columbian exploration.\n'}]}, {'provenance': [{'wikipedia_id': '24490545', 'title': 'Exploration of North America', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 331, 'bleu_score': 0.885632718431904, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14352222070861032844}, 'section': 'Section::::Pre-Columbian exploration.\n'}]}]