at System.Linq.Enumerable.First[TSource](IEnumerable`1 source)\r\n   at Datumtron.Omega.QAS.QuestionAnsweringStrategies.GetAttributeAndInstance(datum question, katum& instance, katum& attr, katum& attr_abstract)\r\n   at Datumtron.Omega.QAS.QuestionAnsweringStrategies.IS_AnswerStrategyFunc(katum container, katum attribute, datum question)\r\n   at DatumTron.Datum.Abstract.katum.ExecuteFunction(katum aval, datum item, function f)\r\n   at DatumTron.Datum.Abstract.katum._of_NoInheritance(datum item, datum originalItem, Boolean itemInheritance)\r\n   at DatumTron.Datum.Abstract.katum.<>c__DisplayClass213_0.<_of_A_Inheritance>b__1(katum a0x)\r\n   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)\r\n   at DatumTron.Datum.Abstract.katum._of_A_Inheritance(datum item, katum asa, Boolean itemInheritance, Boolean all)\r\n   at DatumTron.Datum.Abstract.katum.of(datum item, katum asa)\r\n   at DatumTron.Datum.Abstract.katum.get_Item(datum d, katum asa)\r\n   at Datumtron.Omega.OmegaAsk.QASSelector.AnswerFunc(katum container, katum attribute, datum question)\r\n   at DatumTron.Datum.Abstract.katum.ExecuteFunction(katum aval, datum item, function f)\r\n   at DatumTron.Datum.Abstract.katum._of_NoInheritance(datum item, datum originalItem, Boolean itemInheritance)\r\n   at DatumTron.Datum.Abstract.katum.<>c__DisplayClass213_0.<_of_A_Inheritance>b__1(katum a0x)\r\n   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)\r\n   at DatumTron.Datum.Abstract.katum._of_A_Inheritance(datum item, katum asa, Boolean itemInheritance, Boolean all)\r\n   at DatumTron.Datum.Abstract.katum.of(datum item, katum asa)\r\n   at DatumTron.Datum.Abstract.katum.get_Item(katum k, katum asa)\r\n   at Datumtron.Omega.OmegaAsk.OmegaAsk.Answer(katum question, Char Extra)\r\n   at Datumtron.Omega.API.OmegaAPI.Answer(String documentName, String questionText, Char Extra)\r\n   at OmegaEval_SQuAD.Program.Main(String[] args) in D:\\DatumTron\\Projects\\Omega\\OmegaEval_SQuAD\\OmegaEval_SQuAD\\Program.cs:line 63