#optical_illusion__opticalillusion  an optical phenomenon that results in a false or deceptive visual impression
  supertype:  #optical_phenomenon__opticalphenomenon  a physical phenomenon related to or involving light
  subtype:  #apparent_motion__motion__apparent_movement__movement  an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object; "the cinema relies on apparent motion"; "the succession of flashing lights gave an illusion of movement"
  subtype:  #mirage.optical_illusion  an optical illusion in which atmospheric refraction by a layer of hot air distorts or inverts reflections of distant objects
     subtype:  #fata_morgana  a mirage in the Strait of Messina (attributed to the Arthurian sorcerer Morgan le Fay)

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