Complex sentence: The second was awarded to Knut Hamsun for the idealistic novel "Markens Grøde" (Growth of the Soil, 1917) in 1920 and the third Sigrid Undset for the trilogy of Kristin Lavransdatter and the two books of Olav Audunssøn, in 1927.
Split into simpler sentences: The second was awarded to Knut Hamsun for the idealistic novel "Markens Grøde" (Growth of the Soil, 1917) in 1920. The third was Sigrid Undset for the trilogy of Kristin Lavransdatter and the two books of Olav Audunssøn, in 1927.