#generator  engine that converts mechanical energy into electrical energy by electromagnetic induction
  supertype:  engine  motor that converts thermal energy to mechanical work
  subtype:  alternator  dynamo  magneto  turbogenerator  aerogenerator
  part:  brush.electrical_device  conducts current between rotating and stationary parts of a generator or motor
  part:  rotor_coil__rotorcoil__rotor  the rotating armature of a motor or generator
  part:  stator_coil__stator  mechanical device consisting of the stationary part of a motor or generator in or around which the rotor revolves

No statement uses or specializes generator; click here to add one.