About: http://webisa.webdatacommons.org/247046408

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	... concrete is a building material made from sand or other small stones, water, and cement.
http://www.w3.org/ns/prov#wasQuotedFrom	kids.net.au