Question: who was indian president when first nuclear test were conduct
[{'answer': 'Dr. Abdul Kalam', 'provenance': [{'wikipedia_id': '2188274', 'title': 'Pokhran-II', 'start_paragraph_id': 13, 'start_character': 436, 'end_paragraph_id': 13, 'end_character': 451, 'bleu_score': 1.0, 'section': "Section::::India's nuclear bomb project.:Post-Smiling Buddha.\n"}]}, {'provenance': [{'wikipedia_id': '2188274', 'title': 'Pokhran-II', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 487, 'bleu_score': 0.7449381718625261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5252354721084746790}, 'section': "Section::::India's nuclear bomb project.:Post-Smiling Buddha.\n"}]}]