Question: what is religion and types of religion in nigeria
[{'answer': 'Christianity', 'provenance': [{'wikipedia_id': '4414093', 'title': 'Religion in Nigeria', 'start_paragraph_id': 1, 'start_character': 126, 'end_paragraph_id': 1, 'end_character': 138, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Islam', 'provenance': [{'wikipedia_id': '4414093', 'title': 'Religion in Nigeria', 'start_paragraph_id': 1, 'start_character': 143, 'end_paragraph_id': 1, 'end_character': 148, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'a growing population of non-religious Nigerians'}]