PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For nuclei other than 1H, chemical shifts are expressed either in the same manner relative to an agreed substance containing the relevant nucleus or relative to the 1H resonance of TMS as values, defined in the references below.
http://www.w3.org/ns/prov#wasQuotedFrom
  • iupac.org