About: http://webisa.webdatacommons.org/139384439

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	Green and black marbles are the most difficult to polish; therefore, do not rush when polishing these stones.
http://www.w3.org/ns/prov#wasQuotedFrom	mantelsdirect.com