Question: who is the head of the council of ministers
[{'answer': 'Prime Minister', 'provenance': [{'wikipedia_id': '326342', 'title': 'Council of Ministers', 'start_paragraph_id': 2, 'start_character': 140, 'end_paragraph_id': 2, 'end_character': 154, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]