sentences:  As a result of the "Railways Act 1921", on 1 January 1923 the North Eastern Railway became part of the London and North Eastern Railway (LNER).Until 1932 there were three passenger trains a day between Darlington and Tebay, with five trains a day between Kirkby Stephen and Penrith, and the line was also used for specials from Newcastle to Blackpool.The 1947 LNER timetable shows three trains a day between Darlington and Penrith, and another between Darlington and Kirkby Stephen, via the Darlington and Barnard Castle route.