Searching for the true killer of Count Drebber, Sherlock and John set a trap for the culprit using a wedding ring found at the murder scene as bait. After a struggle in which the ring is lost, Sherlock is able to deduce who the real killer is.
They would be seen by the driver
as they got in and out, you see.
.سيراهم السائق عند دخولهم وخروجهم منها
Immerhin würde ihn der Kutscher
beim Ein- und Aussteigen sehen.
El conductor del taxi los vería
al entrar y salir del mismo.
Le cocher pourrait voir le tueur
à l’aller et au retour.
Eles seriam vistos pelo
cocheiro ao entrarem e saírem.
Ведь кучер засвидетельствует,
 что убийца сошёл и сел обратно.