About: http://webisa.webdatacommons.org/81296362

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	materials such as limestone, shale, clay, sand, fly ash, etc. are fed,
http://www.w3.org/ns/prov#wasQuotedFrom	gcisolutions.com