Question: when did the indian constitution come into being
[{'answer': '1950', 'provenance': [{'wikipedia_id': '2198463', 'title': 'History of the Republic of India', 'start_paragraph_id': 1, 'start_character': 58, 'end_paragraph_id': 1, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2198463', 'title': 'History of the Republic of India', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 691, 'bleu_score': 0.9492339780664291, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11064223086832144805}, 'section': 'Section::::Abstract.'}]}]