Through elimination, you can conclude that the Brit smokes Pall Mall and the Swede lives in the fifth house, while clue six and clue two tell you that these two have a bird  and a dog, respectively.
Pomoću eliminacija možeš zaključiti da Britanac puši Pall Mall i Šveđanin živi u petoj kući, dok ti šesti i drugi trag kažu da ta dvojica imaju, redom, pticu i psa.