About: http://webisa.webdatacommons.org/48146338

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	Sandpapers are usually made on a backing sheet of some kind, covered with a coating that contains pumice, sand, marble dust or other silicates that provide the irregularity needed to hold pastel in place, the 'tooth.'
http://www.w3.org/ns/prov#wasQuotedFrom	wetcanvas.com