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);
}