About: http://webisa.webdatacommons.org/35693778

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	But somehow people think concrete block is the best material.
http://www.w3.org/ns/prov#wasQuotedFrom	naturalbuildingblog.com