About: http://webisa.webdatacommons.org/190537751

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	Foreign substances such as particles and grains which have adhered to the surfaces of the substrate are thus removed from them.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com