Question: which state of india was the first state to adopt panchayat raj system
[{'answer': 'Rajasthan in Nagaur district', 'provenance': [{'wikipedia_id': '5475263', 'title': 'Panchayati raj (India)', 'start_paragraph_id': 9, 'start_character': 59, 'end_paragraph_id': 9, 'end_character': 87, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]