PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The following is an example of the typical seasonal pattern of natural gas prices follow during a typical winter season and how to trade the natural gas price spike that normally occurs during a typical winter.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stockrockandroll.com