public enum Animal {
   SHRIMP(Size.TINY),
   DUCK(Size.SMALL),
   HUSKY(Size.MEDIUM),
   TIGER_SHARK(Size.LARGE),
   SPERM_WHALE(Size.HUGE),
   BLUE_WHALE(Size.GIGANTIC);
   
   public final Size size;
   
    public static enum Size {
       TINY, SMALL, MEDIUM, LARGE, HUGE, GIGANTIC;
    }
    
    Animal(Size size) {
        this.size = size;
    }
    /**
     * 
     * @return The size classification of the animal.
     */
    public Size getSize()   { return size; }

}