About: http://webisa.webdatacommons.org/35353683

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	They can be used as a layer and styles such as metal can be applied (as well as 1000s of other style / layer effects)
http://www.w3.org/ns/prov#wasQuotedFrom	graphicxtras.com