public static class Kochsnowflake {

        @Valid @Getter @Setter public View view = new View();
        @Valid @Getter @Setter public Control control = new Control();

        //@Validated
        @ToString
        public static class View {
            @NotBlank @Getter @Setter private String title;
            @NotBlank @Getter @Setter private String subtitle;

            @Valid @Getter @Setter public Neighborhood neighborhood = new Neighborhood();

            //@Validated
            @ToString
            public static class Neighborhood {
                @NotBlank @Getter @Setter private String title;
                @NotBlank @Getter @Setter private String typeVonNeumann;
                @NotBlank @Getter @Setter private String typeMoore;
                @NotBlank @Getter @Setter private String typeWoehlke;
            }
        }

        //@Validated
        @ToString
        public static class Control {
            @NotNull  @Getter @Setter private Integer threadSleepTime;
            @NotNull  @Getter @Setter private Integer numberOfParticles;
        }
    }

    @ToString
    public static class Samegame {