About: http://webisa.webdatacommons.org/180967388

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	Thus, a complex structure is formed on the surface which is hard to characterize and whose properties, such as coverage density and constitution, are difficult to determine.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr