Question: what is the most popular religion in uk
[{'answer': 'Christianity', 'provenance': [{'wikipedia_id': '1135593', 'title': 'Religion in the United Kingdom', 'start_paragraph_id': 1, 'start_character': 131, 'end_paragraph_id': 1, 'end_character': 143, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]