Question: what was the first capital of northen rhodesia
[{'answer': 'Livingstone', 'provenance': [{'wikipedia_id': '284309', 'title': 'Northern Rhodesia', 'start_paragraph_id': 23, 'start_character': 132, 'end_paragraph_id': 23, 'end_character': 143, 'bleu_score': 1.0, 'section': 'Section::::British South Africa Company.:Railway developments.\n'}]}, {'provenance': [{'wikipedia_id': '284309', 'title': 'Northern Rhodesia', 'start_paragraph_id': 27, 'start_character': 0, 'end_paragraph_id': 27, 'end_character': 647, 'bleu_score': 0.9808590314834971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3397882971614058515}, 'section': 'Section::::British South Africa Company.:The end of BSAC rule.\n'}]}]