About: http://webisa.webdatacommons.org/443359744

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	Hand sharpening or polishing stones, and other millstones, grindstones and the like: trade statistics 2.4.4.
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net