public void TestToTargetId()
        {
            StandardIdentifier identifier = StandardIdentifierTranslation.StandardStringToStandardIdentifier(elaStandardString);
            var targetId = StandardIdentifierTranslation.ToTargetId(identifier);

            identifier = StandardIdentifierTranslation.StandardStringToStandardIdentifier(noTargetString);
            var noTargetId = StandardIdentifierTranslation.ToTargetId(identifier);

            Assert.Equal("4", targetId);
            Assert.Equal(string.Empty, noTargetId);
        }