About: http://webisa.webdatacommons.org/111141906

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	??? Gypsum is a naturally occurring mineral that is made up of calcium sulphate and water (CaSO4+2H2O) that is sometimes called hydrous calcium sulphate.It is the mineral calcium sulphate with two water molecules attached.
http://www.w3.org/ns/prov#wasQuotedFrom	issuu.com