Question: when was sussex divided into east and west
[{'answer': 'In 1974', 'provenance': [{'wikipedia_id': '1139890', 'title': 'History of Sussex', 'start_paragraph_id': 5, 'start_character': 1038, 'end_paragraph_id': 5, 'end_character': 1045, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1139890', 'title': 'History of Sussex', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1303, 'bleu_score': 0.9080613083135001, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6664479618595091779}, 'section': 'Section::::Abstract.'}]}]