Question: what is the main religion in the world
[{'answer': 'Christianity', 'provenance': [{'wikipedia_id': '348450', 'title': 'Major religious groups', 'start_paragraph_id': 3, 'start_character': 678, 'end_paragraph_id': 3, 'end_character': 690, 'bleu_score': 1.0, 'section': 'Section::::History of religious categories.\n'}]}]