Question: the two chambers of elected national representative in nigeria are called
[{'answer': 'Senate', 'provenance': [{'wikipedia_id': '1898990', 'title': 'National Assembly (Nigeria)', 'start_paragraph_id': 1, 'start_character': 159, 'end_paragraph_id': 1, 'end_character': 165, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'House of Representatives', 'provenance': [{'wikipedia_id': '1898990', 'title': 'National Assembly (Nigeria)', 'start_paragraph_id': 1, 'start_character': 198, 'end_paragraph_id': 1, 'end_character': 222, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]