Question: in which year the nationalisation of subsidiary bank of the state bank of india was done
[{'answer': '1959', 'provenance': [{'wikipedia_id': '1629774', 'title': 'State Bank of Mysore', 'start_paragraph_id': 2, 'start_character': 510, 'end_paragraph_id': 2, 'end_character': 514, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1629774', 'title': 'State Bank of Mysore', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 703, 'bleu_score': 0.9549673513635031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5082939687570236883}, 'section': 'Section::::Abstract.'}]}]