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 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