Please answer the following question: Generate a question that has the following answer: He was suffering from the cold weather. for the following movie plot: Katyn describes the tragedy of a generation. The film follows the story of four Polish families whose lives are torn apart when, at the outset of WWII, a great number of Polish soldiers (who are also fathers, husbands and brothers) fall into the hands of Soviet troops and later brutally become victims of Stalinism. The film also underlines the complicated circumstances of Poland's position both in the war and after. -tc-119"Katyn" tells the story through the eyes of the women; the mothers, wives and daughters of the victims executed on Stalin's orders by the NKVD in 1940.The main male character is Andrzej (played by Artur Zmijewski), a young Polish captain in an Uhlan (light cavalry) regiment who keeps a detailed diary. He is taken prisoner by the Soviet Army, which separates the officers from the enlisted men, who are allowed to return home, while the officers are held. His wife Anna (played by Maja Ostaszewska) and daughter Weronika ("Nika", played by Wiktoria Gsiewska) find him shortly before he is deported to the USSR. Presented with an opportunity to escape, he refuses on the basis of his oath of loyalty to the Polish military.Andrzej ends up in a prisoner of war camp, where he is kept for awhile and continues to keep his diary. He carefully records the names of all his fellow officers who are taken from the camp, as well as the dates they are taken. When winter comes, Andrzej is obviously suffering from the cold temperatures, and his colleague Jerzy (played by Andrzej Chyra) lends him an extra sweater. As it happens, the sweater has Jerzy's name written on it. Finally, it is Andrzej's turn to be taken from the camp, but Jerzy is left behind.At this point, the film fast-forwards to the post-WWII period back in Poland, when and where Andrzej's wife and daughter are still awaiting word about him. News of the Katyn massacre is reported, including the names of the victims, but Andrzej's name is not included in the list of victims, leading his wife and daughter hope that he was not among them. Jerzy, who has...
A:
Why did Jerzy guess Andrzej his sweater?