PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I think authors would potentially find it confusing to decide whether to use method A or B if there are two approved ways for marking up a conversation (depending on whether it contains non-actor content)
http://www.w3.org/ns/prov#wasQuotedFrom
  • krijnhoetmer.nl