Question: who were the first european to reach the americas and when did they arrive
[{'answer': 'Norse', 'provenance': [{'wikipedia_id': '52447', 'title': 'European colonization of the Americas', 'start_paragraph_id': 8, 'start_character': 11, 'end_paragraph_id': 8, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'year 1000', 'provenance': [{'wikipedia_id': '52447', 'title': 'European colonization of the Americas', 'start_paragraph_id': 9, 'start_character': 444, 'end_paragraph_id': 9, 'end_character': 453, 'bleu_score': 1.0, 'section': 'Section::::Norse trans-oceanic contact.\n'}]}, {'provenance': [{'wikipedia_id': '52447', 'title': 'European colonization of the Americas', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 847, 'bleu_score': 0.924204790690708, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3720981717732667563}, 'section': 'Section::::Norse trans-oceanic contact.\n'}]}]