About: http://webisa.webdatacommons.org/361506140

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 base material may initially be ground, e.g. in a wet grinding process.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com