sentences:  When the camp was evacuated in early 1945, Greenman was sent on a 90-kilometre death march to Gleiwitz, and then taken in open cattle trucks to Buchenwald.There, Greenman found that the camp guards had fled on 11 April, and the camp was soon liberated by the American 3rd Army.Of the 700 on the train from Westerbork, only Greenman and one other man survived.