sentences:  HMS Umpire (N82)
  
  HMS "Umpire" (N82) was a Royal Navy U-class submarine built at Chatham Dockyard and sunk in an accident nine days after commissioning in July 1941 with the loss of 22 men.The submarine was sunk while en route from Chatham to join the 3rd Submarine Flotilla at Dunoon, under the command of Lieutenant Mervyn Wingfield.