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 long was NASA's Gemini program active? Passage 1:Bröker started his career at 1. FC Köln. During the 2004–05 season, Bröker scored one goal in 16 matches for the first team and five goals in 27 matches for the reserve team. Bröker then moved to Dynamo Dresden for the 2005–06 season. During the 2005–06 season, he scored four goals in 27 league matches and no goals in two matches in the German Cup. Bröker then moved to SC Paderborn 07. During the 2006–07 season, Bröker scored no goals in 19 league matches and one goal in two matches in the German Cup. Bröker returned to Dynamo Dresden for the 2007–08 season. He scored nine goals in 30 matches during the 2007–08 season and 10 goals in 37 league matches. Then he went to Rot Weiss Ahlen for the 2009–10 season. During the 2009–10 season, he scored two goals in 22 league matches and no goals in two matches in the German Cup. Bröker then went to Fortuna Düsseldorf for the 2010–11 season. During the 2010–11 season, Bröker scored five goals in 25 league matches. During the 2011–12 season, Bröker scored eight goals in 31 league matches and one goal in three matches in the German Cup. During the 2011–12 season, Fortuna Düsseldorf qualified for the promotion playoff against Hertha BSC where he scored one goal in two matches. Then he returned to 1. FC Köln for the 2012–13 season. During the 2012–13 season, he scored three goals in 25 league matches and two goals in one match in the German Cup. During the 2013–14 and 2014–15 seasons, Bröker played for both the first and second teams. During the 2013–14 season, he score no goals in 10 matches for the first team and no goals in one match for the second team. During the 2014–15 season, he scored no goals in four matches for the first team and no goals in one match for the second team. Then he moved to MSV Duisburg for the 2015–16 season. During the 2015–16 season, he scored three goals in 25 matches for the first team and no goals in one match for the reserve team. During the 2016–17 season, he scored no goals in 16 league matches and no goals in one match in the German Cup. On 12 January 2018, he moved to Fortuna Köln.
 Passage 2:When Epstein's field goal attempt for the 2001 Wolverines was blocked on September 8 with 9:11 remaining against Washington and run back for a touchdown, it gave the Huskies a lead that they would not relinquish on the way to a 23–18 game. Epstein made a 51-yard field goal against Iowa on October 27 to give Michigan a 6-point lead with 3:57 remaining. The 32–26 score held up. He posted a school record 57-yard field goal against Michigan State in the November 3, 2001 Michigan–Michigan State football rivalry game known as Clockgate. However, later in the game, Epstein's short punt and two Michigan penalties, made way for Michigan State's controversial game-winning drive. He made the game-winning 31-yard field goal against the Wisconsin on November 17, 2001 with 10 seconds left. Epstein set up the field goal when his punt bounced off of Badger Brett Bell and was recovered by Brandon Williams with 14 seconds left. In the game 3 of his 8 punts were downed inside the 20 yard line, including a 48-yarder that was downed on the 1-yard-line to set up Michigan's first score. 3 of his 5 kickoffs were touchbacks and a fourth one into the end zone was just returned 15 yards. Epstein's performance earned him Big Ten Special Teams Player of the Week recognition and his 8 points (2 FGs and 2 PATs) gave him the team scoring lead with 69 points. He finished the season with 76 points (13–20 FGs and 37–37 PATs) and 71 punts for 2790 yards (39.3 average/17 inside 20). Epstein's single-season punt yardage total was a school record that was surpassed the following season by Adam Finley. His 76 points just edged out B. J. Askew's 72 points and Marquise Walker's 68 points. Epstein earned All-Big Ten Conference second team honors as a placekicker from the coaches and honorable mention honors by both the coaches and media as a punter. He concluded his career by making 2 field goals in the January 26, 2002 Senior Bowl.
 Passage 3:Gemini 9A (officially Gemini IX-A) was a 1966 crewed spaceflight in NASA's Gemini program. It was the seventh crewed Gemini flight, the 13th crewed American flight and the 23rd spaceflight of all time (includes X-15 flights over ). The original crew for Gemini 9, command pilot Elliot See and pilot Charles Bassett, were killed in a crash on February 28, 1966 while flying a T-38 jet trainer to the McDonnell Aircraft plant in St. Louis, Missouri to inspect their spacecraft. Their deaths promoted the backup crew, Thomas P. Stafford and Eugene Cernan, to the prime crew. The mission was renamed Gemini 9A after the original May 17 launch was scrubbed when the mission's Agena Target Vehicle was destroyed after a launch failure. The mission was flown June 3–6, 1966, after launch of the backup Augmented Target Docking Adaptor (ATDA). Stafford and Cernan rendezvoused with the ATDA, but were unable to dock with it because the nose fairing failed to eject from the docking target due to a launch preparation error. Cernan performed a two-hour extravehicular activity, during which it was planned for him to demonstrate free flight in a self-contained rocket pack, the USAF Astronaut Maneuvering Unit. He was unable to accomplish this due to stress, fatigue, and overheating.

Output:
3