About: http://webisa.webdatacommons.org/186997255

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	However, parts cast of metals such as iron, using expanded polystyrene foams, may have an unacceptable amount of surface defects, such as lustrous carbon.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com