PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It is important that the samples be recrystallized in the same manner since many organic compounds crystallize in more than one form, depending on conditions; if there is a chance that two different crystalline forms of the same substance are being compared, a finding of nonidentity will be meaningless.
http://www.w3.org/ns/prov#wasQuotedFrom
  • followscience.com