public static RegEx getExample2()         //begind met bbaba of een of meerdere keren aa gevolgd 0 of meerdere keren bba
        {
            RegEx exp1 = new RegEx("bbaba");
            RegEx exp2 = new RegEx("aa");
            RegEx exp3 = new RegEx("bba");
            RegEx exp4 = exp1.Or(exp2.Plus());
            RegEx exp5 = exp4.Dot(exp4.Star());

            return(exp5);
        }
        public static RegEx getExample3()
        {
            RegEx exp1 = new RegEx("ababa");
            RegEx exp2 = new RegEx("baba");
            RegEx exp3 = exp1.Dot(exp2);
            RegEx exp4 = new RegEx("aaa");
            RegEx exp5 = new RegEx("bb");
            RegEx exp6 = exp4.Or(exp3.Plus());
            RegEx exp7 = exp6.Dot(exp6.Plus());

            return(exp7);
        }