PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While they do not represent an activity that the child can join, they do come as messages from activities or from the system, conveying important information about the state of the activity or system status such as battery strength or wireless signal.
http://www.w3.org/ns/prov#wasQuotedFrom
  • laptop.org