About: http://webisa.webdatacommons.org/415685844

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 makers have even found ways to reuse such items as oyster shells and even waste ash from coal-fired power plants.Cement serves as the paste in modern concrete.
http://www.w3.org/ns/prov#wasQuotedFrom	howstuffworks.com