About: http://webisa.webdatacommons.org/67609181

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	The weathering of historical buildings and, indeed, of monuments and sculptures of natural stone is a problem that has been encountered for hundreds of years.
http://www.w3.org/ns/prov#wasQuotedFrom	masonrymagazine.com