Question: who believed that a government should be run by philosopher kings
[{'answer': 'Plato', 'provenance': [{'wikipedia_id': '1908606', 'title': 'Philosopher king', 'start_paragraph_id': 1, 'start_character': 13, 'end_paragraph_id': 1, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1908606', 'title': 'Philosopher king', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 789, 'bleu_score': 0.9709071385125551, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6649700741712483425}, 'section': 'Section::::In Book VI of "The Republic".\n'}]}]