PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It dynamically represents various aspect of the earth, such as real-time weather (updated hourly through the internet), earthquake and tsunami, climate variations and global warming progression, biodiversity, trans-national circulation of air pollutants, etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tangible-earth.com