Input (grade 10): The ship was wrecked off the Nore in the Thames Estuary in 1944 with around 1,500 tons of explosives on board, which continue to be a hazard to the area.
Output (grade 9): Montgomery was wrecked off the coast of Kent in 1944 with around 1,500 tons of explosives on board, which continue to be a hazard to the area