Complex sentence: Despite the introduction of railcars the first closures took place in 1937 and although some lines were reopened during World War Two by 1950 the only section open was St. Brieuc-Paimpol, which closed on 31 December 1956.
Split into simpler sentences: Despite the introduction of railcars the first closures took place in 1937. Although some lines were reopened during World War Two, by 1950 the only section open was St. Brieuc-Paimpol, which closed on 31 December 1956.