Question: where is the head office of rbi located
[{'answer': 'Mumbai', 'provenance': [{'wikipedia_id': '277069', 'title': 'Reserve Bank of India', 'start_paragraph_id': 2, 'start_character': 552, 'end_paragraph_id': 2, 'end_character': 558, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '277069', 'title': 'Reserve Bank of India', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 1743, 'bleu_score': 0.964950148251777, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1560270824816300337}, 'section': 'Section::::History.:1935–1949.\n'}]}]