#casing  the outermost covering of a pneumatic tire
  supertype:  covering.artifact  an artifact that cover something else (usually to protect or shelter or conceal it)
  part of:  pneumatic_tire__pneumatictire__pneumatic_tyre__pneumatictyre  a tire made of reinforced rubber and filled with compressed air; used on motor vehicles and bicycles etc
     part of:  bicycle_wheel__bicyclewheel  the wheel of a bicycle
        part of:  bicycle__bike__wheel  a cycle that has two wheels; moved by foot pedals
     part of:  car_wheel__carwheel  a wheel that has a tire and rim and hubcap; used to propel the car
        part of:  motor_vehicle__motorvehicle__automotive_vehicle  a self-propelled wheeled vehicle that does not run on rails

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