PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For example, is a storm that causes $1 billion damage today more or less destructive than one which caused $100 million 20 years ago?
http://www.w3.org/ns/prov#wasQuotedFrom
  • edwardtufte.com