Complex sentence: From 1903 and for many years thereafter Sibelius had lived in the countryside, but from 1939 Jean and Aino again had a home in Helsinki but they moved back to Ainola in 1941, only occasionally visiting the city.
Split into simpler sentences: From 1903 and for many years thereafter Sibelius had lived in the countryside. From 1939 he and Aino again had a home in Helsinki but they moved back to Ainola in 1941, only occasionally visiting the city.