About: http://webisa.webdatacommons.org/423623745

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	Exploration in the block faces difficulties including remarkable depth of the buried layer and geological complexity, the statement said.
http://www.w3.org/ns/prov#wasQuotedFrom	sinocism.com