AIMA.Core.Logic.FOL.Parsing.AST.NotSentence.ToString C# (CSharp) Method

        public override String ToString()
        {
            if (null == stringRep)
            {
                StringBuilder sb = new StringBuilder();
                sb.Append("NOT(");
                sb.Append(negated.ToString());
                sb.Append(")");
                stringRep = sb.ToString();
            }
            return stringRep;
        }
    }