Question: who proposed the indefinite as the structure of reality
[{'answer': "Anaximander 's", 'provenance': [{'wikipedia_id': '1168', 'title': 'Anaximander', 'start_paragraph_id': 61, 'start_character': 88, 'end_paragraph_id': 61, 'end_character': 108, 'bleu_score': 1.0, 'section': 'Section::::Interpretations.\n'}]}, {'provenance': [{'wikipedia_id': '1168', 'title': 'Anaximander', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 901, 'bleu_score': 0.9800653338198461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5296337008282897828}, 'section': 'Section::::Abstract.'}]}]