PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • *There is a bit of history involved in how ratios should be measured: http://dl.clackamas.cc.or.us/ch104-03/molecule.htm
http://www.w3.org/ns/prov#wasQuotedFrom
  • wattsupwiththat.com