Question: what is most popular religion in the world
[{'answer': 'Christianity', 'provenance': [{'wikipedia_id': '742964', 'title': 'List of religious populations', 'start_paragraph_id': 6, 'start_character': 58, 'end_paragraph_id': 6, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::By proportion.:Christians.\n'}]}]