Question: where did the us get the idea of democracy
[{'answer': 'the Roman republic model', 'provenance': [{'wikipedia_id': '1827032', 'title': 'History of democracy', 'start_paragraph_id': 103, 'start_character': 268, 'end_paragraph_id': 103, 'end_character': 292, 'bleu_score': 1.0, 'section': 'Section::::Rise of democracy in modern national governments.:Eighteenth and nineteenth century milestones.\n'}]}]