PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • By-products include t-butyl alcohol, ethers, acids, glycols and esters such as methyl formate.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es