Question: Downton is a civil parish in Herefordshire, located in the north of the county and containing the village of Downton-on-the-Rock, in which manuscript record of the "Great Survey" of much of England and parts of Wales completed in 1086, Downton is referred to as "Duntune", meaning "hill settlement"?
{'answer': 'Domesday Book', 'supporting_facts': [['Downton, Herefordshire', 2], ['Domesday Book', 0]]}