About: http://webisa.webdatacommons.org/393521480

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	Suitable abrasive particles include any particles which can be used to wear down or reduce a surface known by those skilled in the art, such as particles of sand, silica, alumina (Al2O3), zirconia, ceria, and diamond.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au