Question: what political system originated in the ancient greek city of athens
[{'answer': 'democracy', 'provenance': [{'wikipedia_id': '51992830', 'title': 'Athenian democracy', 'start_paragraph_id': 0, 'start_character': 9, 'end_paragraph_id': 0, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51992830', 'title': 'Athenian democracy', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 363, 'bleu_score': 0.8809580695912831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3414555107340048637}, 'section': 'Section::::Abstract.'}]}]