Question: when was the planning commission set up to prepare a blue print of development for the country
[{'answer': '15 March 1950', 'provenance': [{'wikipedia_id': '1724322', 'title': 'Planning Commission (India)', 'start_paragraph_id': 7, 'start_character': 186, 'end_paragraph_id': 7, 'end_character': 199, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]