Bloggs Family, the

Bloggs Family, the n.  An imaginary family consisting of
   Fred and Mary Bloggs and their children.  Used as a standard
   example in knowledge representation to show the difference between
   extensional and intensional objects.  For example, every occurrence
   of "Fred Bloggs" is the same unique person, whereas occurrences
   of "person" may refer to different people.  Members of the Bloggs
   family have been known to pop up in bizarre places such as the DEC
   Telephone Directory.  Compare {Mbogo, Dr. Fred}.