Question: who provided the rationalization of existence based upon reason and not supernatural factors
[{'answer': 'Descartes', 'provenance': [{'wikipedia_id': '30758', 'title': 'Age of Enlightenment', 'start_paragraph_id': 5, 'start_character': 176, 'end_paragraph_id': 5, 'end_character': 185, 'bleu_score': 1.0, 'section': 'Section::::Significant people and publications.\n'}]}, {'provenance': [{'wikipedia_id': '30758', 'title': 'Age of Enlightenment', 'start_paragraph_id': 83, 'start_character': 0, 'end_paragraph_id': 83, 'end_character': 919, 'bleu_score': 0.6290951621339681, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9493507311247185104}, 'section': 'Section::::Historiography.:Time span.\n'}]}]