#control_system__controlsystem  a system for controlling the operation of another system
  supertype:  system.instrumentality__unit  instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity; "he bought a new stereo system"; "the unit consists of a motor and a small computer"
  subtype:  servo__servomechanism__servosystem  control system that converts a small mechanical motion into one requiring much greater power; may include a negative feedback system

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