About: http://webisa.webdatacommons.org/111448860

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In most castles and manor houses and in some town dwellings, materials such as wood, clay tiles and stone were used for roofing.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com