Question: when did the viking age finish in europe
[{'answer': '1066 AD', 'provenance': [{'wikipedia_id': '32538', 'title': 'Viking Age', 'start_paragraph_id': 1, 'start_character': 20, 'end_paragraph_id': 1, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '32538', 'title': 'Viking Age', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 537, 'bleu_score': 0.872061969153156, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15258230417202108085}, 'section': 'Section::::Abstract.'}]}]