Answer

Answer.cs

public enum Answers
    {
        No,
        Yes,
    }

    public struct Answer
    {
        public Answer(Answers answer)
        {
            this.Value = answer;
        }

        public readonly Answers Value;

        public static bool operator !(Answer x)
        {
            return !(x.Value == Answers.Yes);
        }

        public override string ToString()
        {
            if (!this)
                return "No";
            else
                return "Yes";
        }
    }