Question: what is the plan that separates the federal government's power across three different branches
[{'answer': 'Separation of powers', 'provenance': [{'wikipedia_id': '738686', 'title': 'Separation of powers under the United States Constitution', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '738686', 'title': 'Separation of powers under the United States Constitution', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 641, 'bleu_score': 0.9804854598160591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14617696749187816327}, 'section': 'Section::::Abstract.'}]}]