Complex sentence: In 1920, the operation was reorganised as part of the Sunbeam-Talbot-Darracq (STD) conglomerate and in 1935, the company was purchased by the Rootes Group.
Split into simpler sentences: In 1920, the operation was reorganised as part of the Sunbeam-Talbot-Darracq (STD) conglomerate. In 1935, the company was purchased by the Rootes Group.