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: How many years did Pietro Pellegri attend the Genoa youth academy? Passage 1:Sothoron broke into the major leagues when the spitball was still legal. His best season came in 1919, when he posted a 2013 record with a 2.20 earned run average for the Browns, finishing fifth in the American League in wins and ERA. After the spitball was outlawed following the 1919 campaign, Sothoron at first was not permitted to throw it, then in mid-1920 he was added to a list of 17 spitballers in the majors who were allowed to continue using the banned pitch. But he was never able to match his 1919 numbers. His pitching career ended in St. Louis with the National League Cardinals, where he played for his first MLB manager, Branch Rickey, and led the NL in shutouts with four in , despite a mediocre 1016 (3.57) record. During his MLB career, he appeared in 264 games pitched, and allowed 1,583 hits and 596 bases on balls in 1,582 innings pitched. He struck out 576 and hurled 102 complete games.
Passage 2:His musical education started in 1977 on the piano, at Nysa School of Music. Then, in 1981, he started to play on trumpet while continuing to perfect the piano skills, in Chrzanow School of Music. In 1989, after graduating from the Secondary School of Music in Krakow, majoring in trumpet (minor in piano), he first entered John Paul II University to play organ and later (in 1990) matriculated to Musical University in Krakow to study music theory. Finally, in 1992 he began study in Katowice at the prestigious Karol Szymanowski University of Music's School of Jazz and Popular Music. In 1995, he received his master's degree with Honors as a Jazz Vocalist. In January 2012, he received PhD degree from the Fryderyk Chopin University of Music in Warsaw. In June 2014, he completed the process of habilitation at the Fryderyk Chopin University of Music in Warsaw, gaining the rank of a "habilitated doctor,"- equivalent to the American title of "assistant-professor." The title of his work was "Polska piosenka popularna interpretowana w jezyku jazzowym. Analiza utworow z pyty SPIEWNIK." ("Polish pop music translated into the language of jazz. An analysis of the works from "Spiewnik.")
Passage 3:Born in Genoa, Pellegri is a youth product of the Genoa youth academy. On 22 December 2016, he made his debut with the senior team in Serie A in a 10 away loss against Torino, coming on as an 88th-minute substitute for Tomas Rincon. At the age of 15 years and 280 days, he equalled the record as the youngest ever Serie A debutant, held by Roma's Amedeo Amadei since 1937. In doing so he also became the first player born in the 21st century to appear in Serie A, and the second player born in the 2000s to make his Italian top-flight debut after Moise Kean. On 28 May, he scored his first Serie A goal in a 32 away loss against Roma, becoming the first player born in the 21st century to ever score in Serie A, and the third youngest goalscorer ever in the Italian top flight, after Amadei and Gianni Rivera.

Output:
3