Complex sentence: One Day in the Life of Ivan Denisovich and The First Circle, based on is time in the Gulag; and Matryona's Place and Cancer Ward, based on his experiences in "internal" exile in rural Russia and Tashkent between 1953 and 1957.
Split into simpler sentences: One Day in the Life of Ivan Denisovich and The First Circle were based on is time in the Gulag. Others, including Matryona's Place and Cancer Ward, were based on his experiences in exile in rural Russia and Tashkent, between 1953 and 1957.