Given the task definition and input, reply with output. 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 Presidents have died while still in office? Passage 1:Multiple artists have cited the band as an influence. Kele Okereke, lead singer of London band Bloc Party, said that he started making music because of Suede's Dog Man Star, and called it "the first record [he] fell in love with". Kate Jackson, lead singer of English indie rock band The Long Blondes has said in interviews of her love for Suede. In 2007, she admitted that Suede got her into music, saying: "Suede's debut album was unlike anything I'd heard before. It was the opposite of grunge, which I hated, and my escape from Bury St Edmunds." Christopher Owens of the Californian indie pop group Girls named Suede as one of his major influences, and his vocal style has been compared to that of Anderson. My Chemical Romance frontman Gerard Way cited Suede as a prominent inspiration for his 2014 solo album, Hesitant Alien. The band have also served as an influence on acts such as Sons and Daughters, Dum Dum Girls, and Drowners, who took their name from the similarly titled Suede song. Canadian rock band Destroyer named their 2017 album ken after the original title for "The Wild Ones".
 Passage 2:Declan O'Keeffe (born 1972 in Rathmore, County Kerry) is a former Irish sportsperson. He played Gaelic football at various times with his local clubs Rathmore in Kerry and Clooney/Quin and St Josephs Doora-Barefield in Clare. He was a member of the Kerry senior inter-county team from 1996 until 2003. He won All-Ireland Senior Football Championships in 1997 & 2000. He also won an All-Ireland Junior Football Championship in 1994. He won Munster Under-21 Football Championship medals in 1992 and 1993, and a Munster Minor Football Championship medal in 1990. He won an International Rules in 1999 and a Railway Cup. He won 3 County Championships with East Kerry in 1997, 1998 and 1999.
 Passage 3:McKellar twice served as President pro tempore of the United States Senate, commencing in 1945, the first to hold the position under the system that has prevailed since of reserving it for the most senior member of the majority party. When Harry Truman became president in April 1945, upon FDR's death, the vice presidency became vacant (the mechanism for filling intra-term vacancies had not yet been created by the 25th Amendment), and so McKellar became the permanent presiding officer of the United States Senate. Also, as the President pro tempore of the Senate had, prior to 1886, been second in the presidential line of succession, behind only the vice president, Truman viewed McKellar as the logical wartime replacement for himself, and asked McKellar to attend all Cabinet meetings. In 1947 Truman successfully lobbied Congress to pass a new Presidential Succession Act restoring both the Speaker of the House and the President pro tempore of the Senate to the succession ahead of the Cabinet secretaries. By the time the law came into effect, McKellar was no longer in the position of President pro tempore, because Republicans held the majority in the 80th Congress. Truman vetoed the Taft-Hartley Act in 1947 to restrict labor unions, which McKellar voted in favor of. As such Truman selected Alben Barkley of Kentucky as his running mate in the 1948 presidential election. When Democrats regained control as a result of the 1948 elections, McKellar again became President pro tempore. He was therefore second in line for the presidency (behind the Speaker of the House) from January 3, 1949 until January 20, 1949, when Alben Barkley took office as Vice President of the United States.
3