Question: how many indian soldiers died in operation blue star
[{'answer': '83', 'provenance': [{'wikipedia_id': '311735', 'title': 'Operation Blue Star', 'start_paragraph_id': 2, 'start_character': 218, 'end_paragraph_id': 2, 'end_character': 220, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]