Question: who has the most power in a unitary system
[{'answer': 'central government', 'provenance': [{'wikipedia_id': '216400', 'title': 'Unitary state', 'start_paragraph_id': 1, 'start_character': 67, 'end_paragraph_id': 1, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]