#light_source__lightsource__light  any device serving as a source of illumination; "he stopped the car and turned off the lights"
  supertype:  #source_of_illumination  any device serving as a source of visible electromagnetic radiation
  subtype:  #anchor_light__riding_light__riding_lamp  a light in the rigging of a ship that is riding at anchor
  subtype:  #blinker__flasher  a light that flashes on and off; used as a signal or to send messages
  subtype:  #flood_lamp__floodlamp__flood__floodlight__photoflood  light that is a source of artificial illumination having a broad beam; used in photography
  subtype:  #headlight__headlamp  a powerful light with reflector; attached to the front of an automobile or locomotive
     subtype:  #foglamp  headlight that provides strong beam for use in foggy weather
  subtype:  #houselights__houselight  lights that illuminate the audience part of a theater or other auditorium
  subtype:  #navigation_light  light on an airplane that indicates the plane's position and orientation; red light on the left (port) wing tip and green light on the right (starboard) wing tip
  subtype:  #nightlight  light (as a candle or small bulb) that burns in a bedroom at night (as for children or invalids)
  subtype:  #panel_light  a light to illuminate an instrument panel
  subtype:  #room_light  light that provides general illumination for a room
  subtype:  #searchlight  a light source with reflectors that projects a beam of light in a particular direction
  subtype:  #sidelight__running_light__runninglight  light carried by a boat that indicates the boat's direction; vessels at night carry a red light on the port bow and a green light on the starboard bow
  subtype:  #strip_lighting__striplighting  light consisting of long tubes (instead of bulbs) that provide the illumination
  subtype:  #theater_light__theaterlight  any of various lights used in a theater
     subtype:  #footlight__footlights  theater light at the front of a stage that illuminate the set and actors
  subtype:  #torch  a light carried in the hand; consists of some flammable substance
     subtype:  #flambeau  a flaming torch (such as are used in processions at night)

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