sentences:  After five days at sea, she attacked a German convoy south of Nice, France, and sank the German submarine chaser "UJ-2213" which had been painted to appear like an oil tanker.The boat next attacked the with torpedoes on 20 May, but missed; "U-755" was sunk eight days later by aircraft.The next day, "Sickle" attacked the off Toulon and hit it with two torpedoes; "U-303" sank in half a minute.