About: http://webisa.webdatacommons.org/186577700

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	Note that the border of each layer is not always definite, and sometimes a material including each layer is partly mixed; therefore, the interface is unclear.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com