#lamp  an artificial source of visible illumination
  supertype:  #source_of_illumination  any device serving as a source of visible electromagnetic radiation
  subtype:  #Aladdin's_lamp  (in the Arabian Nights) a magical lamp from which Aladdin summoned a genie
  subtype:  #candle__taper__wax_light__waxlight  stick of wax with a wick in the middle
     subtype:  #rushlight__rush_candle  a tallow candle with a rush stem as the wick
     subtype:  #vigil_light__vigillight__vigil_candle__vigilcandle  a candle lighted by a worshiper in a church
  subtype:  #electric_lamp  a lamp powered by electricity
     subtype:  #arc_lamp__arclamp__arc_light__arclight  a lamp that produces light when electric current flows across the gap between two electrodes
        subtype:  #carbon_arc_lamp__carbon_arc  has carbon electrodes
           subtype:  #klieg_light__klieglight  carbon arc lamp that emits an intense light used in producing films
     subtype:  #electric-discharge_lamp__gas-discharge_lamp__gasdischargelamp  an electric lamp in which the light comes from an electric discharge between two electrodes in a glass tube
     subtype:  #flashlight__torch  a small portable battery-powered electric lamp
        subtype:  #penlight  a small flashlight resembling a fountain pen
     subtype:  #electric-light_bulb__light_bulb__lightbulb__lightbulb__bulb__incandescent_lamp__electric_light  electric lamp consisting of a glass bulb containing a wire filament (usually tungsten) that emits light when heated
  subtype:  #flash_lamp__flashlamp__flash__photoflash__flashgun__flashbulb  a lamp for providing momentary light to take a photograph
  subtype:  #fluorescent_lamp__fluorescentlamp  lamp consisting of a tube coated on the inside with a fluorescent material; mercury vapor in the tube emits ultraviolet radiation that is converted to visible radiation by the fluorescent material
  subtype:  #gas_lamp__gaslamp  a lamp that burns illuminating gas
  subtype:  #hurricane_lamp__hurricanelamp__hurricane_lantern__hurricanelantern__tornado_lantern__tornadolantern__storm_lantern__stormlantern__storm_lamp__stormlamp  an oil lamp with a glass chimney and perforated metal lid to protect the flame from high winds; candlestick with a glass chimney
  subtype:  #lantern  light in a transparent protective case
     subtype:  #Chinese_lantern  a collapsible paper lantern in bright colors; used for decorative purposes
     subtype:  #dark_lantern  a lantern with a sliding panel to conceal the light
     subtype:  #jack-o'-lantern  lantern carved from a pumpkin
  subtype:  #calcium_light__calciumlight__limelight  a lamp consisting of a flame directed at a cylinder of lime with a lens to concentrate the light; formerly used for stage lighting
  subtype:  #neon_lamp__neon_induction_lamp__neon_tube  a lamp consisting of a small gas-discharge tube containing neon at low pressure; luminescence is produced by the action of currents at high frequencies that are wrapped a few turns around the tube
  subtype:  #oil_lamp__oillamp__kerosene_lamp__kerosine_lamp  a lamp that burns oil (as kerosine) for light
     subtype:  #safety_lamp__Davy_lamp  an oil lamp that will not ignite flammable gases (methane)
  subtype:  #sodium-vapor_lamp__sodium-vapour_lamp  lamp in which an electric current passed through a tube of sodium vapor makes a yellow light; used is street lighting
  subtype:  #spirit_lamp  a lamp that burns a volatile liquid fuel such as alcohol
  subtype:  #spotlight__spot  a lamp that produces a strong beam of light to illuminate a restricted area; used to focus attention of a stage performer
  subtype:  #streetlight__street_lamp  a lamp supported on a lamppost; for illuminating a street
  subtype:  #taillight__tail_lamp__rear_light__rear_lamp  lamp (usually red) mounted at the rear of a motor vehicle

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