Question: who organized elements into four groups based on properties
[{'answer': 'Aristotle', 'provenance': [{'wikipedia_id': '619795', 'title': 'History of the periodic table', 'start_paragraph_id': 4, 'start_character': 237, 'end_paragraph_id': 4, 'end_character': 246, 'bleu_score': 1.0, 'section': 'Section::::Early history.\n'}]}, {'provenance': [{'wikipedia_id': '619795', 'title': 'History of the periodic table', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 616, 'bleu_score': 0.783493452088406, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16845483075574067792}, 'section': 'Section::::Early history.\n'}]}]