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 old was Greek George when the camels were finally auctioned off? Passage 1:Ali was one of several men hired by the United States Army to introduce camels as beasts of burden to transport cargo across the "Great American Desert." Eight of the men – including Ali – were of Greek origin. They arrived at the Port of Indianola in Calhoun County, Texas on the . The book Go West Greek George by Steven Dean Pastis, published in both Greek and English, specifically identifies all eight men. These pioneers were Yiorgos Caralambo (later known as Greek George), Hadji Ali (Hi Jolly, a.k.a. Philip Tedro), Mimico Teodora (Mico), Hadjiatis Yannaco (Long Tom), Anastasio Coralli (Short Tom), Michelo Georgios, Yanni Iliato, and Giorgios Costi. The Americans acquired three camels in Tunis, nine in Egypt and 21 in Smyrna: 33 in all. Ali was the lead camel driver during the US Army's experiment with the U.S. Camel Corps in using camels in the dry deserts of the Southwest. After successfully traveling round trip from Texas to California, the experiment failed, partly due to the problem that the Army's burros, horses, and mules feared the large animals, often panicking, and the tensions of the American Civil War led to Congress not approving more funds for the Corps. In 1864, the camels were finally auctioned off in Benicia, California, and Camp Verde, Texas. Ali was discharged from the Quartermaster Department of the U.S. Army at Fort McDowell in 1870.
 Passage 2:In 2009 the Taliban began moving even more men into Nawa, possibly for additional attacks against Lashkar Gah. On May 13, they launched an attack against the Afghan National Police in the district, that overwhelmed several posts. By late spring they had established a solid foothold in the district. On July 2, 2009, Marines from the 1st Battalion, 5th Marines (1/5) occupied the district as part of Operation Strike of the Sword. They set up their headquarters in Forward Operating Base Geronimo. On August 26, Lance Corporal Donald Hogan, a Marine with 1/5, threw himself in front of an improvised explosive device (IED), saving the Marines in his squad. He was later posthumously awarded the Navy Cross for his actions. In December, 1/5 was replaced by 1st Battalion, 3rd Marines. In the late summer and early fall the Marines detained Haji Adam, one of Nawa's main drug lords, and turned his house into Combat Outpost (COP) Sullivan. In November two local officials were assassinated. On December 17, Admiral Mike Mullen, the Chairman of the Joint Chiefs of Staff, visited Patrol Base Jaker and touted the security gains by touring the Nawa district center without wearing body armor. Several weeks later Afghan President Hamid Karzai and ISAF commander General Stanley McChrystal also visited Nawa on January 2, 2010. On January 9 British journalist Rupert Hamer and two Marines were killed by an IED in the district.
 Passage 3:The Birth of a Nation is written, produced, and directed by Nate Parker, who also stars as Nat Turner. Parker wrote the screenplay, which was based on a story he co-wrote with Jean McGianni Celestin. Parker learned about Turner from an African-American studies course at the University of Oklahoma. He began writing the screenplay for a Nat Turner film in 2009 and had a fellowship at a lab under the Sundance Institute. While he got writing feedback from filmmakers like James Mangold, he was told that a Nat Turner film could not be produced. The Hollywood Reporter said:But what he heard instead were all the reasons a movie about Nat Turner wouldn't work: Movies with black leads don't play internationally; a period film with big fight scenes would be too expensive; it was too violent; it wouldn't work without a big box-office star leading it; Turner was too controversial—after all, he was responsible for the deaths of dozens of well-off white landowners.After Parker finished his acting role in Beyond the Lights in late 2013, he told his agents he would not continue acting until he had played Nat Turner in a film. He invested $100,000 of his money to hire a production designer and to pay for location scouting in Savannah, Georgia. He met with multiple financiers, and the first to invest in the film were retired basketball player Michael Finley (who had previously invested in the film The Butler) and active basketball player Tony Parker (no relation). Parker eventually brought together 11 groups of investors to finance 60% of the production budget, and producer Aaron L. Gilbert of Bron Studios joined to cover the remaining financing.
1