RECORD Yacht
      GROUP Type_of_yacht
        STRING Manufacturer = 10
        STRING Model = 10
      END GROUP Type_of_yacht
      GROUP Specifications
        STRING Rig = 6
        STRING Length_over_all = 3
        DECIMAL(5,0) Displacement
        DECIMAL(2,0) Beam
        DECIMAL(7,2) Price
      END GROUP Specifications
  END RECORD Yacht