Question: Which poet is known for his war poetry on the horrors of trench and gas warfare: Wilfred Owen or Daniil Kharms?

full_context: Document 1: Daniil Kharms: Daniil Kharms (Russian: Дании́л Ива́нович Хармс ; 30 December [O.S. 17 December] 1905  – 2 February 1942) was an early Soviet-era surrealist and absurdist poet, writer and dramatist.
Document 2: Andrei Platonov: Andrei Platonov (Russian: Андре́й Плато́нов , ] ; August 28 [O.S. August 16] 1899 – January 5, 1951) was the pen name of Andrei Platonovich Klimentov (Russian: Андре́й Плато́нович Климе́нтов ), a Soviet Russian writer, playwright, and poet, whose works anticipate existentialism. Although Platonov was a Communist, most of his works were banned in his own lifetime for their skeptical attitude toward collectivization and other Stalinist policies, as well as for its experimental, avant-garde form. His famous works include the novels "The Foundation Pit" (Котлован) and "" (Чевенгур)
Document 3: 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 4: 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 5: Alexander Vvedensky (poet): Alexander Ivanovich Vvedensky (Russian: Алекса́ндр Ива́нович Введе́нский ; 1904–1941) was a Russian poet and dramatist with formidable influence on "unofficial" and avant-garde art during and after the times of the Soviet Union. Vvedensky is widely considered (among contemporary Russian writers and literary scholars) as one of the most original and important authors to write in Russian in the early Soviet period. He is placed on par with writers such as Andrei Platonov for innovation in the language. Vvedensky considered his own poetry "a critique of reason more powerful than Kant's."
Document 6: Futility (poem): "Futility" is a poem written by Wilfred Owen, one of the most renowned poets of World War I. The poem was written in May 1918 and published as no. 153 in "The Complete Poems and Fragments". The poem is well known for its departure from Owen's famous style of including disturbing and graphic images in his work; the poem instead having a more soothing, somewhat light-hearted feel to it in comparison. A previous secretary of the Wilfred Owen Association argues that the bitterness in Owen's other poems "gives place to the pity that characterises his finest work". Futility details an event where a group of soldiers attempt to revive an unconscious soldier by moving him into the warm sunlight on a snowy meadow. However, the "kind old sun" cannot help the soldier - he has died.
Document 7: Insensibility: "Insensibility" is a poem written by Wilfred Owen during the First World War which explores the effect of warfare on soldiers, and the long- and short-term psychological effects that it has on them. The poem's title refers to the fact that the soldiers have lost the ability to feel due to the horrors which they faced on the Western Front during the First World War.
Document 8: Vladimir Mayakovsky: Vladimir Vladimirovich Mayakovsky ( ; Russian: Влади́мир Влади́мирович Маяко́вский ; 19 July [O.S. 7 July] 1893 – 14 April 1930) was a Russian Soviet poet, playwright, artist, and actor.
Document 9: Robert Desnos: Robert Desnos (] ; 4 July 1900 – 8 June 1945), was a French surrealist poet who played a key role in the Surrealist movement of his day.
Document 10: 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 11: Clownery (film): Clownery (Russian: КлоунАда , translit. "Klounada") is a black-and-white and colour 1989 Soviet idependent film directed by Dmitrii Frolov. It is based on Daniil Kharms novel "Situations".
Document 12: World War I in literature: Literature in World War I is generally thought to include poems, novels and drama; diaries, letters, and memoirs are often included in this category as well. Although the canon continues to be challenged, the texts most frequently taught in schools and universities are lyrics by Siegfried Sassoon and Wilfred Owen; poems by Ivor Gurney, Edward Thomas, Charles Sorley, David Jones and Isaac Rosenberg are also widely anthologised. Many of the works during and about the war were written by men, because of the war's intense demand on the young men of that generation; however, a number of women (especially in the British tradition) created literature about the war, often observing the effects of the war on soldiers, domestic spaces, and the homefront more generally.
Document 13: Georges Malkine: Georges Alexandre Malkine (10 October 1898 – 22 March 1970) was the only visual artist named in André Breton’s 1924 Surrealist Manifesto among those who, at the time of its publication, had “performed acts of absolute surrealism." The rest Breton named were for the most part writers, including Louis Aragon, Robert Desnos, and Benjamin Peret. Malkine's 1926 painting "Nuit D'amour" was the precursor of the lyrical abstract school of painting.
Document 14: 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 15: 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".
ground_truth: Wilfred Edward Salter Owen