public static IExpression GetFruitExpression()
        {
            IExpression apple  = new TerminalExpression("Яблоко");
            IExpression orange = new TerminalExpression("Апельсин");

            return(new OrExpression(apple, orange));
        }
        public static IExpression GetJacketExpression()
        {
            IExpression blue   = new TerminalExpression("Синий");
            IExpression jacket = new TerminalExpression("Свитер");

            return(new AndExpression(blue, jacket));
        }