Question: how many types of ministers are there in central government
[{'answer': 'Cabinet Ministers', 'provenance': [{'wikipedia_id': '797711', 'title': 'Union Council of Ministers', 'start_paragraph_id': 26, 'start_character': 11, 'end_paragraph_id': 26, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Current Union Council of Ministers.\n'}]}, {'answer': 'Ministers of State', 'provenance': [{'wikipedia_id': '797711', 'title': 'Union Council of Ministers', 'start_paragraph_id': 1, 'start_character': 174, 'end_paragraph_id': 1, 'end_character': 192, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'deputy ministers', 'provenance': [{'wikipedia_id': '797711', 'title': 'Union Council of Ministers', 'start_paragraph_id': 1, 'start_character': 207, 'end_paragraph_id': 1, 'end_character': 223, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '797711', 'title': 'Union Council of Ministers', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 223, 'bleu_score': 0.891847151369839, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4292949543746948491}, 'section': 'Section::::Abstract.'}]}]