PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It should be noted in this point that according to the recent concept of radon migration in the crust, the major carrier of radon to the ground surface is the carbon dioxide and other gases such as methane, hydrogen, and helium [40].
http://www.w3.org/ns/prov#wasQuotedFrom
  • hindawi.com