PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At any rate, the spread between wholesale prices for coal-fired electricity and other kinds of electricity is narrow enough that it would not be very hard for coal to be simply priced out of the market.
http://www.w3.org/ns/prov#wasQuotedFrom
  • historynewsnetwork.org