Question: when was republic day parade started first time
[{'answer': '1950', 'provenance': [{'wikipedia_id': '36472208', 'title': 'Delhi Republic Day parade', 'start_paragraph_id': 13, 'start_character': 6, 'end_paragraph_id': 13, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Chief guest.\n'}]}]