You will be given a definition of a task first, then some input of the task.
In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.

Question: Which of the two men that formed a breakaway party passed away first? Passage 1:In 1907 Jan Ceton, Willem van Ravesteyn and David Wijnkoop founded De Tribune (The Tribune), a magazine in which they criticized the leadership of the Social Democratic Workers' Party (SDAP) of which they were members. They maintained orthodox marxist views and expected a proletarian revolution. They opposed the leadership of the SDAP, who were more oriented towards more a revisionist ideology and a parliamentary and reformist political strategy. At a party congress in Deventer held on February 14, 1909 the leadership of the SDAP demanded that they stop publishing De Tribune or be expelled from the party. Wijnkoop and Ceton refused and they and their supporters, including the poet Herman Gorter and the mathematician Gerrit Mannoury, left to form a breakaway party. This split was the first such split in Western European European Socialist parties, although others followed. There had already been a split between the Bolsheviks and Mensheviks in the Russian Social Democratic Labour Party and with the break away Tesnjaki group which broke from the Bulgarian Social Democratic Party. On March 14, 1909 the dissenters founded a new party called the Social Democratic Party (SDP). They had a membership of around 400 spread across different cities: Amsterdam (160), Rotterdam (65), The Hague (45), Leiden (56), Utrecht (25), Bussum (15).
Passage 2:On 14 January 2013 she released her debut single, "Glass". On 15 March 2013 she released "Pilgrim" with B-side "Maiden". It peaked at number eleven on the Danish Singles Chart. On 7 June 2013 she released the single "Waste of Time". On 30 August 2013 she released the single "XXX 88" M's first extended play, Bikini Daze was released on 18 October 2013. The single "Don't Wanna Dance" debuted on BBC Radio 1 on 16 January 2014 as Zane Lowe's Hottest Record. M's debut studio album, No Mythologies to Follow was released on 7 March 2014. In 2014, M was featured on Australian rapper Iggy Azalea's song "Beg for It", which was released as the lead single from Azalea's reissue album, Reclassified. M co-wrote and provided vocals for Major Lazer song "Lean On" with DJ Snake, which was released in March 2015. On 1 October 2015 it was announced that the first single from M's upcoming second studio album, "Kamikaze", produced by Diplo would be released on 15 October 2015. On 14 October the single made its world premiere on a BBC Radio segment hosted by Annie Mac before the studio version was released the following day. "Kamikaze" has charted in Denmark, the United Kingdom, Australia and Belgium.
Passage 3:Wartime observers perceived the bombing as indiscriminate. American observer Ralph Ingersoll reported the bombing was inaccurate and did not hit targets of military value, but destroyed the surrounding areas. Ingersol wrote that Battersea Power Station, one of the largest landmarks in London, received only a minor hit. In fact, on 8 September 1940 both Battersea and West Ham Power Station were both shut down after the 7 September daylight attack on London. In the case of Battersea power station, an unused extension was hit and destroyed during November but the station was not put out of action during the night attacks. It is not clear whether the power station or any specific structure was targeted during the German offensive as the Luftwaffe could not accurately bomb select targets during night operations. In the initial operations against London, it did appear as if rail targets and the bridges over the Thames had been singled out: Victoria Station was hit by four bombs and suffered extensive damage. The bombing disrupted rail traffic through London without destroying any of the crossings. On 7 November, St Pancras, Kensal and Bricklayers Arms stations were hit and several lines of Southern Rail were cut on 10 November. The British government grew anxious about the delays and disruption of supplies during the month. Reports suggested the attacks blocked the movement of coal to the Greater London regions and urgent repairs were required. Attacks against East End docks were effective and many Thames barges were destroyed. The London Underground rail system was also affected; high explosive bombs damaged the tunnels rendering some unsafe. The London Docklands, in particular the Royal Victoria Dock, received many hits and Port of London trade was disrupted. In some cases, the concentration of the bombing and resulting conflagration created firestorms of 1,000C. The Ministry of Home Security reported that although the damage caused was "serious" it was not "crippling" and the quays, basins, railways and equipment remained operational.

Output:
1