About: http://webisa.webdatacommons.org/412100200

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 seemingly ubiquitous compound is a mixture of water, cement and additives such as sand and gravel.
http://www.w3.org/ns/prov#wasQuotedFrom	howstuffworks.com