john, stuart, some_plz, 123456, 234557
        name:good vorname:good plz:good tel:good tel49:good

john, stuart, some_plz, 123456,
        name:good vorname:good plz:good tel:good tel49:bad

john, stuart, some_plz, 123456
        name:good vorname:good plz:good tel:good tel49:bad

john, stuart, some_plz,, 234557
        name:good vorname:good plz:good tel:bad tel49:good

, stuart, , 123456, 234557
        name:bad vorname:good plz:bad tel:good tel49:good

,,,123456, 234557
        name:bad vorname:bad plz:bad tel:good tel49:good

john,,some_plz,, 234557
        name:good vorname:bad plz:good tel:bad tel49:good