PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • *Opportunity* cost is a means of saying that we don???t just stop at the money ($1.00), but rather we think in terms of a foregone good or service (perhaps a pear, etc.).
http://www.w3.org/ns/prov#wasQuotedFrom
  • marginalrevolution.com