PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There are many services for storing certain types of data, such as pictures, but this is unhelpful for chemistry: while it???s great for someone to see a bitmapped rendition of a molecule, its true value is unlocked only if the source data, in a machine readable format, is available.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cheminf20.org