Question: total number of public sector bank in india
[{'answer': '21', 'provenance': [{'wikipedia_id': '33383806', 'title': 'Public sector banks in India', 'start_paragraph_id': 7, 'start_character': 399, 'end_paragraph_id': 7, 'end_character': 401, 'bleu_score': 1.0, 'section': 'Section::::History.:Before the economic liberalisation.\n'}]}, {'provenance': [{'wikipedia_id': '33383806', 'title': 'Public sector banks in India', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 208, 'bleu_score': 0.7951836950334611, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17743368100085790030}, 'section': 'Section::::Abstract.'}]}]