Question: who is regarded as the father of the scenario method
[{'answer': 'Herman Kahn', 'provenance': [{'wikipedia_id': '600500', 'title': 'Scenario planning', 'start_paragraph_id': 40, 'start_character': 64, 'end_paragraph_id': 40, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::History of use by academic and commercial organizations.\n'}]}, {'provenance': [{'wikipedia_id': '600500', 'title': 'Scenario planning', 'start_paragraph_id': 40, 'start_character': 0, 'end_paragraph_id': 40, 'end_character': 1531, 'bleu_score': 0.9920158083747831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17590243957905393612}, 'section': 'Section::::History of use by academic and commercial organizations.\n'}]}]