Definition: 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.
Input: Question: Which southern Honshū city is the most populous of the three that had heavy air strikes delivered on them between July 24 and August 10? Passage 1:With the outbreak of the Russo-Turkish War in August 1787, Russian Empress Catherine the Great laid out her plans to incite revolts across Ottoman Greece. Proclamations calling the Greek clergy to lead a war of liberation against the Ottomans were printed in September 1787 and February 1788. In March, Admiral Samuel Greig and Major-General Ivan Zaborovsky were tasked with signing alliances and facilitating revolts among the Christian populations in Dalmatia, Albania and Greece. The Russian consulate in the Heptanese activated its network of sleeper agents who had originally been recruited before the Orlov revolt. Louitzis Sotiris and Himariot Panos Bitsilis begin recruiting soldiers in the area of Epirus, while Antonis Psaros and Lambros Katsonis built a small naval force in Italy. For the most part Russian plans did not materialize as the Baltic Fleet failed to reach the Mediterranean Sea. Without its assistance most of Russia's local allies refused to take part in the rising.
 Passage 2:After shakedown in the Caribbean Sea, Saint Paul departed Boston, Massachusetts, on 15 May 1945 and headed for the Pacific. From 8–30 June, she underwent training out of Pearl Harbor and sailed on 2 July to join Task Force 38 (TF 38). This fast carrier striking force completed replenishment at sea on 23 July and then proceeded to launching points for strikes against Honshū, Japan's largest island. From 24 July to 10 August, Saint Paul screened the carriers as they delivered heavy air strikes on Kure, Kobe, and the Tokyo area in southern Honshū, then at Maizuru and various airfields in northern Honshū. During this period, Saint Paul also bombarded industrial targets: first on textile mills at Hamamatsu during the night of 29 July, and then on 9 August at iron and steel works in Kamaishi, firing the war's last hostile salvo from a major ship. Typhoon warnings canceled air operations from 11–14 August. Then, those launched that morning were recalled, after peace negotiations gave promise of Japan's surrender. On 15 August, all offensive operations against Japan were stopped.
 Passage 3:Following the Belgian general election held on 13 June 2010, a process of cabinet formation started in Belgium. The election produced a very fragmented political landscape, with 11 parties elected to the Chamber of Representatives, none of which won more than 20% of the seats. The Flemish-Nationalist New Flemish Alliance (N-VA), the largest party in Flanders and the country as a whole, controlled 27 of 150 seats in the lower chamber. The Francophone Socialist Party (PS), the largest in Wallonia, controlled 26 seats. Cabinet negotiations continued for a long time. On 1 June 2011, Belgium matched the record for time taken to form a new democratic government after an election, at 353 days, held until then by Cambodia in 2003–2004. On 11 October 2011, the final agreement for institutional reform was presented to the media. A government coalition was named on 5 December 2011 and sworn in after a total of 541 days of negotiations and formation on 6 December 2011, and 589 days without an elected government with Elio Di Rupo named Prime Minister of the Di Rupo I Government.

Output:
2