Question: Who was born later. Saul Bellow or Siegfried Sassoon?

full_context: Document 1: Nobel Prize in Literature: Since 1901, the Nobel Prize in Literature (Swedish: "Nobelpriset i litteratur" ) has been awarded annually to an author from any country who has, in the words of the will of Alfred Nobel, produced "in the field of literature the most outstanding work in an ideal direction" (original Swedish: "den som inom litteraturen har producerat det mest framstående verket i en idealisk riktning"). Though individual works are sometimes cited as being particularly noteworthy, here "work" refers to an author's work as a whole. The Swedish Academy decides who, if anyone, will receive the prize in any given year. The academy announces the name of the chosen laureate in early October. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895; the others are the Nobel Prize in Chemistry, Nobel Prize in Physics, Nobel Peace Prize, and Nobel Prize in Physiology or Medicine.
Document 2: Isaac Bashevis Singer: Isaac Bashevis Singer (Yiddish: יצחק באַשעװיס זינגער‎ ; November 21, 1902 – July 24, 1991) was a Polish-born Jewish writer in Yiddish, awarded the Nobel Prize in Literature in 1978. The Polish form of his birth name was Icek Hersz Zynger. He used his mother's first name in an initial literary pseudonym, "Izaak Baszewis", which he later expanded. He was a leading figure in the Yiddish literary movement, writing and publishing only in Yiddish. He was also awarded two U.S. National Book Awards, one in Children's Literature for his memoir "A Day Of Pleasure: Stories of a Boy Growing Up in Warsaw" (1970) and one in Fiction for his collection "A Crown of Feathers and Other Stories" (1974).
Document 3: Base Details: Base Details is a war poem by the English war poet Siegfried Sassoon. In the poem Sassoon condemns what he saw as the incompetence and callous indifference to the soldiers at the front displayed by the staff officers, or "scarlet majors" of the British Army, who stayed at the Base "Guzzling and gulping in the best hotel" and sending "glum heroes up the line to death". Like so many of Sassoon's poems "Base Details" is bitterly sarcastic and utterly derisive of the comfortable establishment that supported the continuation of the war while showing little concern for the people who suffered its consequences. It took place during World War I in France around 1914-1918.
Document 4: Saul Bellow: Saul Bellow (born Solomon Bellows; 10 June 1915 – 5 April 2005) was a Canadian-American writer. For his literary work, Bellow was awarded the Pulitzer Prize, the Nobel Prize for Literature, and the National Medal of Arts. He is the only writer to win the National Book Award for Fiction three times and he received the National Book Foundation's lifetime Medal for Distinguished Contribution to American Letters in 1990.
Document 5: Wilfred Owen: Wilfred Edward Salter Owen, MC (18 March 1893 – 4 November 1918) was an English poet and soldier, one of the leading poets of the First World War. His war poetry on the horrors of trenches and gas warfare was heavily influenced by his mentor Siegfried Sassoon, and stood in stark contrast both to the public perception of war at the time and to the confidently patriotic verse written by earlier war poets such as Rupert Brooke. Among his best-known works – most of which were published posthumously – are "Dulce et Decorum est", "Insensibility", "Anthem for Doomed Youth", "Futility", "Exposure" and "Strange Meeting".
Document 6: The Beginning and the End (novel): The Beginning and the End (بداية ونهاية) is a novel by Naguib Mahfouz, who was awarded the Nobel Prize in literature in 1988. An Egyptian, Naguib has been credited with modernizing Arabic literature, with his prolific writing style and his themes on existentialism. The novel is marked by very bold characterization by Naguib Mahfouz, for the time period that the story is set in. The story moves at a prolific pace and tries to look at the world from each characters view point.
Document 7: Naguib Mahfouz: Naguib Mahfouz (Arabic: نجيب محفوظ‎ ‎ "Nagīb Maḥfūẓ ", ] ; December 11, 1911 – August 30, 2006) was an Egyptian writer who won the 1988 Nobel Prize for Literature. He is regarded as one of the first contemporary writers of Arabic literature, along with Tawfiq el-Hakim, to explore themes of existentialism. He published 34 novels, over 350 short stories, dozens of movie scripts, and five plays over a 70-year career. Many of his works have been made into Egyptian and foreign films.
Document 8: Memorial Tablet: "Memorial Tablet (Great War)" is a poem by Siegfried Sassoon, written in October 1918 and first published in his 1919 collection "Picture-Show". The original manuscript is held by Cambridge University Library. Sassoon had by this time been invalided out of the army and the war had only a month to run.
Document 9: Suicide in the Trenches: “Suicide in the Trenches,” by the English poet Siegfried Sassoon (1886-1967), is one of the many poems Sassoon composed in response to World War I. It reflects his own notable service in that especially bloody conflict. Sassoon was a brave and gallant upper-class officer who eventually opposed the war, but he never lost his admiration for the common soldiers who had to fight it. Sassoon felt contempt for the political leaders and civilian war hawks who, safe in their power and comfort, sent young men off to die in huge battles that seemed futile and pointless. It was first published February 23, 1918 in "Cambridge Magazine", then in Sassoon's collection: "Counter-Attack and Other Poems". The poem is written in iambic tetrameter and consists of twelve lines in three stanzas.
Document 10: Günter Grass: Günter Wilhelm Grass (] ; 16 October 1927 – 13 April 2015) was a German novelist, poet, playwright, illustrator, graphic artist, sculptor, and recipient of the 1999 Nobel Prize in Literature.
Document 11: Siegfried Sassoon: Siegfried Loraine Sassoon, {'1': ", '2': ", '3': 'CBE, MC', '4': "} (8 September 1886 – 1 September 1967) was an English poet, writer, and soldier. Decorated for bravery on the Western Front, he became one of the leading poets of the First World War. His poetry both described the horrors of the trenches, and satirised the patriotic pretensions of those who, in Sassoon's view, were responsible for a jingoism-fuelled war. Sassoon became a focal point for dissent within the armed forces when he made a lone protest against the continuation of the war in his "Soldier's Declaration" of 1917, culminating in his admission to a military psychiatric hospital; this resulted in his forming a friendship with Wilfred Owen, who was greatly influenced by him. Sassoon later won acclaim for his prose work, notably his three-volume fictionalised autobiography, collectively known as the "Sherston trilogy".
Document 12: Memoirs of an Infantry Officer: Memoirs of an Infantry Officer is a novel by Siegfried Sassoon, first published in 1930. It is a fictionalised account of Sassoon's own life during and immediately after World War I. Soon after its release, it was heralded as a classic and was even more successful than its predecessor, "Memoirs of a Fox-Hunting Man".
Document 13: Rupert Brooke: Rupert Chawner Brooke (middle name sometimes given as "Chaucer"; 3 August 1887 – 23 April 1915) was an English poet known for his idealistic war sonnets written during the First World War, especially "The Soldier". He was also known for his boyish good looks, which were said to have prompted the Irish poet W. B. Yeats to describe him as "the handsomest young man in England".
Document 14: Roberto Bolaño: Roberto Bolaño Ávalos (] ; 28 April 1953 – 15 July 2003) was a Chilean novelist, short-story writer, poet and essayist. In 1999, Bolaño won the Rómulo Gallegos Prize for his novel "Los detectives salvajes" ("The Savage Detectives"), and in 2008 he was posthumously awarded the National Book Critics Circle Award for Fiction for his novel "2666", which was described by board member Marcela Valdes as a "work so rich and dazzling that it will surely draw readers and scholars for ages". "The New York Times" described him as "the most significant Latin American literary voice of his generation".
Document 15: List of Nobel laureates in Literature: The Nobel Prize in Literature (Swedish: "Nobelpriset i litteratur") is awarded annually by the Swedish Academy to authors for outstanding contributions in the field of literature. It is one of the five Nobel Prizes established by the 1895 will of Alfred Nobel, which are awarded for outstanding contributions in chemistry, physics, literature, peace, and physiology or medicine. As dictated by Nobel's will, the award is administered by the Nobel Foundation and awarded by a committee that consists of five members elected by the Swedish Academy. The first Nobel Prize in Literature was awarded in 1901 to Sully Prudhomme of France. Each recipient receives a medal, a diploma and a monetary award prize that has varied throughout the years. In 1901, Prudhomme received 150,782 SEK, which is equivalent to 7,731,004 SEK in December 2007. The award is presented in Stockholm at an annual ceremony on December 10, the anniversary of Nobel's death.
ground_truth: Saul Bellow