Question: who came up with the cartesian coordinate system
[{'answer': 'René Descartes', 'provenance': [{'wikipedia_id': '7706', 'title': 'Cartesian coordinate system', 'start_paragraph_id': 3, 'start_character': 62, 'end_paragraph_id': 3, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7706', 'title': 'Cartesian coordinate system', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 571, 'bleu_score': 0.9447427003284201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7349136416002847012}, 'section': 'Section::::Abstract.'}]}]