Question: when did the black plague start in europe
[{'answer': 'By the end of 1346', 'provenance': [{'wikipedia_id': '4501', 'title': 'Black Death', 'start_paragraph_id': 8, 'start_character': 114, 'end_paragraph_id': 8, 'end_character': 132, 'bleu_score': 1.0, 'section': 'Section::::Chronology.:Origins of the disease.\n'}]}, {'provenance': [{'wikipedia_id': '4501', 'title': 'Black Death', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 278, 'bleu_score': 0.957870874785216, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12403094556001824324}, 'section': 'Section::::Chronology.:Origins of the disease.\n'}]}]