Question: who was the first indian whose official residence was rashtrapati bhavan
[{'answer': 'Chakravarti Rajagopalachari', 'provenance': [{'wikipedia_id': '665193', 'title': 'Rashtrapati Bhavan', 'start_paragraph_id': 7, 'start_character': 5, 'end_paragraph_id': 7, 'end_character': 32, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '665193', 'title': 'Rashtrapati Bhavan', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 339, 'bleu_score': 0.9663744727315161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17324511196751519840}, 'section': 'Section::::History.\n'}]}]