Question: when was germany split into east and west
[{'answer': '1949', 'provenance': [{'wikipedia_id': '261678', 'title': 'History of Germany (1945–1990)', 'start_paragraph_id': 2, 'start_character': 138, 'end_paragraph_id': 2, 'end_character': 142, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '261678', 'title': 'History of Germany (1945–1990)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 166, 'bleu_score': 0.8743414417652071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1027941523146973406}, 'section': 'Section::::Abstract.'}]}]