Complex sentence: October 30,1950 The company outgrew the apartment and moved into a larger one, which soon became too small, so they moved into a large derelict 1810 Georgian Mansion near the Hudson River in Ossining, NY.
Split into simpler sentences: October 30,1950 The company outgrew the apartment and moved into a larger apartment. They soon outgrew the larger apartment and moved into a large derelict 1810 Georgian Mansion near the Hudson River in Ossining, NY.