Валидатор красный по всем пунктам

abstract static class Hen{
        abstract int getCountOfEggsPerMonth();
        String getDescription(){ return "Я - курица.";}
    }

ublic class BelarusianHen extends Solution.Hen implements Country {
    public int getCountOfEggsPerMonth() {
        return 2;
    }

    public String getDescription() {
        String res = super.getDescription() + " Моя страна - "+Country.BELARUS+". Я несу " + this.getCountOfEggsPerMonth() + " яиц в месяц.";
        return res;
    }
}

static class HenFactory {

        static Hen getHen(String country) {
            Hen hen = null;
            //напишите тут ваш код
            if (country.equals(Country.RUSSIA)) hen = new RussianHen();
            else if (country.equals(Country.BELARUS)) hen = new BelarusianHen();
            else if (country.equals(Country.MOLDOVA)) hen = new MoldovanHen();
            else if (country.equals(Country.UKRAINE)) hen = new UkrainianHen();

            return hen;
        }
    }