PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Caffeine is a naturally occurring stimulant called trimethylxanthine, chemical formula C8H10N4O2.
http://www.w3.org/ns/prov#wasQuotedFrom
  • mamateablog.com