PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Their purpose is not well understood, but they become desiccated over the course of incubation and may moderate humidity or air volume in the incubation chamber. (It is also possible that they have no function or are a vestige of some past mechanism not apparent to us today.)
http://www.w3.org/ns/prov#wasQuotedFrom
  • naturalhistorymag.com