About: http://webisa.webdatacommons.org/454244331

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	Buttresses are typically made of strong materials, such as brick or stone.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com