PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The alkoxysilane may have the chemical formula (RO)nSiR???(4-n), wherein n=1, 2, 3, or 4, each R, independently, may be methyl, ethyl, propyl, butyl, or other alkyl group, and each R???, independently, may be hydrogen, a halogen group, methyl, ethyl, propyl, butyl, or other alkyl group.
http://www.w3.org/ns/prov#wasQuotedFrom
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