PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If the image you set as wallpaper resides in partition other than the ones that are mounted automatically when Ubuntu starts, then your wallpaper is sure to be reset as the file cannot be opened and read since it does not mount the partition on its own(may be a bug).
http://www.w3.org/ns/prov#wasQuotedFrom
  • askubuntu.com