PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • New technologies such as horizontal drilling and hydraulic fracturing have opened up previously unreachable oil deposits in North Dakota and Southern Texas.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thealmanac.net