Question: who was the chief minister of mp during bhopal gas tragedy
[{'answer': 'Arjun Singh', 'provenance': [{'wikipedia_id': '891277', 'title': 'Arjun Singh', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '891277', 'title': 'Arjun Singh', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 402, 'bleu_score': 0.9720210313175831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14695605895493110866}, 'section': 'Section::::Controversies.:Bhopal Incident.\n'}]}]