Given the task definition, example input & output, solve the new input case.
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.
Example: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage 1: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lo during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
. Passage 2: John Ford (18941973) was an American film director whose career spanned from 1913 to 1971. During this time he directed more than 140 films. Born in Maine, Ford entered the filmmaking industry shortly after graduating from high school with the help of his older brother, Francis Ford, who had established himself as a leading man and director for Universal Studios. After working as an actor, assistant director, stuntman, and prop man often for his brother Universal gave Ford the opportunity to direct in 1917. Initially working in short films, he quickly moved into features, largely with Harry Carey as his star. In 1920 Ford left Universal and began working for the Fox Film Corporation. During the next ten years he directed more than 30 films, including the westerns The Iron Horse (1924) and 3 Bad Men (1926), both starring George O'Brien, the war drama Four Sons and the Irish romantic drama Hangman's House (both 1928 and both starring Victor McLaglen). In the same year of these last two films, Ford directed his first all-talking film, the short Napoleon's Barber. The following year he directed his first all-talking feature, The Black Watch.
. Passage 3: Since the late 1970s, the central part of NYU is its Washington Square campus in the heart of Greenwich Village. Despite being public property, and expanding the Fifth Avenue axis into Washington Square Park, the Washington Square Arch is the unofficial symbol of NYU. Until 2008, NYU's commencement ceremony was held in Washington Square Park. However, due to space constraints, ceremonies are now held at the Yankee Stadium. Important facilities at Washington Square are the Elmer Holmes Bobst Library, designed by Philip Johnson and Richard Foster, who also designed several other structures, such as Tisch Hall, Meyer Hall, and the Hagop Kevorkian Center. When designing these buildings Johnson and Foster also set up a master plan for a complete redesign of the NYU Washington Square campus. However, it was never implemented. Other historic buildings include the Silver Center (formerly known as "Main building"); the Brown Building of Science; Judson Hall, which houses the King Juan Carlos I of Spain Center; Vanderbilt Hall, the historic townhouse row on Washington Square North; The Grey Art Gallery at 100 Washington Square East, housing the New York University art collection and featuring museum quality exhibitions; the Kaufman Management Center; and the Torch Club the NYU dining and club facility for alumni, faculty, and administrators. Just a block south of Washington Square is NYU's Washington Square Village, housing graduate students and junior and senior faculty residences in the Silver Towers, designed by I. M. Pei, where an enlargement of Picasso's sculpture Bust of Sylvette (1934) is displayed.
.
Output: 1
The question refers to the 704th unit and task about war which is decribed by Passage 1.

New input case for you: Question: Which major coral reef group went extinct first during the Phanerozoic period? Passage 1:He opened 201516 season with 3 assist against Mersin Idman Yurdu in week 1, ended 52, serviced respectively to Cenk Tosun and Olcay Sahan. In week 3, he scored the opener of the away game directly from a set-piece against Gaziantepspor, which ended 40 in favour of Besiktas. He assisted the second strike of German international Mario Gomez against Eskisehirspor in week 7 game played away, ended 21. He produced another assist to Olcay Sahan in week 9 game played away against Antalyaspor, ended 51 for Besiktas. Ozyakup earned and converted a penalty kick to secure 1 points for Besiktas on dying minutes of week 10 game while Kasmpasaspor were being trailed by Besiktas with 32. He scored the winner of week 11 game against Bursaspor by assist of Atiba Hutchinson, ended 10. He scored with a mid-range shot outside the box in additional time of week 12 game against Sivasspor, ended 20. In week 17, he scored the opened the score with a serial of comfortable dribbling over 2 defenders and goalkeeper, following the assist of Mario Gomez, against Konyaspor, ended 40. On 22 October 2015, Ozyakup assisted Mario Gomez on UEFA Europa League grup stage week 3 game against FC Lokomotiv Moscow, ended 11.
Passage 2:Corals, including some major extinct groups Rugosa and Tabulata, have been important reef builders through much of the Phanerozoic since the Ordovician Period. However, other organism groups, such as calcifying algae, especially members of the red algae Rhodophyta, and molluscs (especially the rudist bivalves during the Cretaceous Period) have created massive structures at various times. During the Cambrian Period, the conical or tubular skeletons of Archaeocyatha, an extinct group of uncertain affinities (possibly sponges), built reefs. Other groups, such as the Bryozoa have been important interstitial organisms, living between the framework builders. The corals which build reefs today, the Scleractinia, arose after the PermianTriassic extinction event that wiped out the earlier rugose corals (as well as many other groups), and became increasingly important reef builders throughout the Mesozoic Era. They may have arisen from a rugose coral ancestor. Rugose corals built their skeletons of calcite and have a different symmetry from that of the scleractinian corals, whose skeletons are aragonite. However, there are some unusual examples of well-preserved aragonitic rugose corals in the Late Permian. In addition, calcite has been reported in the initial post-larval calcification in a few scleractinian corals. Nevertheless, scleractinian corals (which arose in the middle Triassic) may have arisen from a non-calcifying ancestor independent of the rugosan corals (which disappeared in the late Permian).
Passage 3:The name "Lord Haw-Haw of Zeesen" was coined in 1939 by the pseudonymous Daily Express radio critic Jonah Barrington, but this referred initially to Wolf Mittler (or possibly Norman Baillie-Stewart). When Joyce became the best-known propaganda broadcaster, the nickname was transferred to him. Joyce's broadcasts initially came from studios in Berlin, later transferring (because of heavy Allied bombing) to Luxembourg and finally to Apen near Hamburg, and were relayed over a network of German-controlled radio stations that included Hamburg, Bremen, Luxembourg, Hilversum, Calais, Oslo, and Zeesen. Joyce also broadcast on and wrote scripts for the German Buro Concordia organisation, which ran several black propaganda stations, many of which pretended to broadcast illegally from within Britain. His role in writing the scripts increased over time, and the German radio capitalized on his public persona. Initially an anonymous broadcaster, Joyce eventually revealed his real name to his listeners; and he would occasionally be announced as "William Joyce, otherwise known as Lord Haw-Haw". Urban legends soon circulated about Lord Haw-Haw, alleging that the broadcaster was well-informed about political and military events to the point of near-omniscience.

Output:
2