sentences:  She also took part in another round of nighttime torpedo boat exercises with IV Torpedo-boat Flotilla in November.During these maneuvers, on the night of 17 November, she accidentally collided with the torpedo boat off Bülk.The cruiser was steaming with her lights off, and when the torpedo boats approached to conduct a mock torpedo attack, "Undine" turned her search lights on, which blinded the crew of "S126".