Question: The Christmas Album is the fifth Christmas album by which American pop singer, it includes his first recordings of three traditional carols, including which Christmas carol first published in the late nineteenth century and used widely throughout the English-speaking world, and a 1996 Gallup Poll ranked it joint second?
{'answer': 'Johnny Mathis', 'supporting_facts': [['The Christmas Album (Johnny Mathis album)', 0], ['Away in a Manger', 0]]}