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.

[EX Q]: Question: How many people live in the place Bill Hastings was born? Passage 1:Kanazawa was born in Iruma on July 9, 1976. After graduating from Kokushikan University, he joined J1 League club Júbilo Iwata in 1999. Although he could not become a regular player, he played many matches as left side midfielder from first season. The club won the champions 1999 and 2002 J1 League. In Asia, the club won the champions 1998–99 Asian Club Championship and the 2nd place 1999–00 and 2000–01 Asian Club Championship. In 2003, he moved to FC Tokyo. He became a regular player as left side back from first season. The club won the champions 2004 J.League Cup. Although he could hardly play in the match for injury in 2006, he came back and became a regular player again in 2007. From 2008, he lost regular position behind newcomer Yuto Nagatomo and he also played as defensive midfielder not only left side back. In August 2009, he moved to Júbilo Iwata for the first time in 7 years. He played as regular left side back in 2009 season. Although he could not play many matches from 2010, the club won the champions 2010 J.League Cup. His opportunity to play decreased from 2011 and he moved to J2 League club Thespakusatsu Gunma in 2014. He retired end of 2014 season at the age of 38.
 Passage 2:Born in Scarborough, Ontario, Canada in 1957, he attended Lord Roberts Public School, graduated from Midland Avenue Collegiate Institute, holds a BA from the University of Trinity College, University of Toronto, law degrees from Osgoode Hall Law School and the London School of Economics, and was a practising barrister. He moved to New Zealand in 1985. Before becoming Chief Censor, he was Deputy and Acting Chief Censor from December 1998 to October 1999, Senior Lecturer in Law (teaching Legal System and International Law), Deputy Dean of Law, and a member of the governing Council, at Victoria University of Wellington. He was also briefly the Video Recordings Authority in 1994, a member of the Indecent Publications Tribunal from 1990 to 1994 and Deputy President of the Film and Literature Board of Review from 1995 to 1998. In 2010 he stood down as Chief Censor when he became a District Court Judge and Chair of the Immigration and Protection Tribunal. He was succeeded by Andrew Jack.
 Passage 3:Most Deep Learning systems rely on training and verification data that is generated and/or annotated by humans. It has been argued in media philosophy that not only low-payed clickwork (e.g. on Amazon Mechanical Turk) is regularly deployed for this purpose, but also implicit forms of human microwork that are often not recognized as such. The philosopher Rainer Mühlhoff distinguishes five types of "machinic capture" of human microwork to generate training data: (1) gamification (the embedding of annotation or computation tasks in the flow of a game), (2) "trapping and tracking" (e.g. CAPTCHAs for image recognition or click-tracking on Google search results pages), (3) exploitation of social motivations (e.g. tagging faces on Facebook to obtain labeled facial images), (4) information mining (e.g. by leveraging quantified-self devices such as activity trackers) and (5) clickwork. Mühlhoff argues that in most commercial end-user applications of Deep Learning such as Facebook's face recognition system, the need for training data does not stop once an ANN is trained. Rather, there is a continued demand for human-generated verification data to constantly calibrate and update the ANN. For this purpose Facebook introduced the feature that once a user is automatically recognized in an image, they receive a notification. They can choose whether of not they like to be publicly labeled on the image, or tell Facebook that it is not them in the picture. This user interface is a mechanism to generate "a constant stream of  verification data" to further train the network in real-time. As Mühlhoff argues, involvement of human users to generate training and verification data is so typical for most commercial end-user applications of Deep Learning that such systems may be referred to as "human-aided artificial intelligence".  

[EX A]: 2

[EX Q]: Question: How many troops died in the battle that ended the Byzantine-Bulgarian wars with a great Bulgarian victory? Passage 1:In 2008, Lloyd signed a developmental contract with World Wrestling Entertainment, and was assigned to Florida Championship Wrestling (FCW), WWE's developmental territory, where he won the FCW Florida Tag Team Championship, with Kris Logan, and the FCW Florida Heavyweight Championship. In February 2010, he competed in the first season of NXT, finishing third, before being called to the main roster in June 2010 joining The Nexus. He joined The Corre in 2011. Teaming regularly with Heath Slater, the duo won the WWE Tag Team Championship three times in 2010 and 2011, which was the apex of Gabriel's success with WWE. He also won the TNA King of the Mountain Championship during his brief GFW crossover appearances with TNA in 2015.
 Passage 2:"Lisa the Skeptic" is the eighth episode of The Simpsons' ninth season. It first aired on the Fox network in the United States on November 23, 1997. On an archaeological dig with her class, Lisa discovers a skeleton that resembles an angel. All of the townspeople believe that the skeleton actually came from an angel, but skeptical Lisa attempts to persuade them that there must be a rational scientific explanation. The episode's writer, David X. Cohen, developed the idea after visiting the American Museum of Natural History, and decided to loosely parallel themes from the Scopes Monkey Trial. The episode also makes allusions to actual hoaxes, such as the Cardiff Giant. 
 Passage 3:With the ascendance of Simeon I to the throne in 893, the long-lasting peace with the Byzantine Empire established by his father was about to end. A conflict arose when Byzantine Emperor Leo VI the Wise, acting under pressure from his wife Zoe Zaoutzaina and her father, Stylianos Zaoutzes, moved the marketplace for Bulgarian goods from Constantinople to Thessaloniki, where Bulgarian merchants were heavily taxed. Forced to take action, in the autumn of 894 Simeon invaded the Byzantine Empire from the north, meeting little opposition due to the concentration of most Byzantine forces in eastern Anatolia to counter Arab invasions. Informed of the Bulgarian offensive, the surprised Leo sent an army consisting of guardsmen and other military units from the capital to halt Simeon, but his troops were routed somewhere in the theme of Macedonia.The Magyars managed to defeat Simeon's army twice, but in 896 they were routed in the Battle of Southern Buh. The war ended in 896 with a great Bulgarian victory near Bulgarophygon in Eastern Thrace. The market was returned to Constantinople, and the Byzantine Emperor had to pay annual tribute to Bulgaria. More importantly, with help from the Pechenegs Simeon successfully fended off a Magyar invasion, which was coordinated with the Byzantines.

[EX A]: 3

[EX Q]: Question: What is the population of the municipality where the USS St Louis was built in 1861? Passage 1:He was drafted by the Oakland Raiders in 1999 and was later signed by the Cincinnati Bengals in December 1999. Armour started for the Bengals in 2001 and 2002 and was released by them in August 2003. In June 2004 Armour was signed as a free agent by the British Columbia Lions and played for them in 2004 and 2005. After the 2005 season Armour was signed by the Hamilton Tiger-Cats and played for them in the 2006 and 2007 seasons. In February 2008 he was signed by the Calgary Stampeders. He helped Calgary win the 2008 Grey Cup. He was later released on June 22, 2009 for overaggressive plays during training camp. On August 3, 2009, the BC Lions re-signed Armour. On February 25, 2010, Armour announced his retirement after six seasons in the CFL, having spent three with the BC Lions.
 Passage 2:The USS Essex had been constructed in 1856. She was a 1000-ton river gunboat, converted from her original role as a timberclad ferry named New Era. She was armed with one 32-pounder cannon, three Dahlgren smooth bores, one Dahlgren smoothbore and a 12-pounder howitzer. The USS St Louis was a City class ironclad built in 1861 at Carondelet, Missouri. She was armed with three 8-inch smoothbores, four 42-pounder rifles, six 32-pounder rifles and one 12-pounder rifle at the time of her service at Lucas Bend. Both ships were sent to Cairo, Illinois, early in the Civil War as part of troop transports moving the army into Tennessee. Illinois, a Union state which contributed 250,000 men to the Union Army, a figure surpassed by only New York, Pennsylvania, and Ohio, was a key theater. Cairo, at the confluence between the Mississippi and Ohio rivers, was a key supply point and headquarters for Flag Officer Andrew Hull Foote and General Ulysses S. Grant. It was defended by Fort Defiance. The complex river network provided routes for the Union gunboats into the heart of the Confederate forces; however the water levels – particularly in the Tennessee River – were often not sufficient for gunboats to pass.
 Passage 3:Ruben is known for hosting the show Outrageous Acts of Science on the Science Channel, known outside the United States as You Have Been Warned and Loco Lab. He has also been seen and heard on the Food Network's Food Detectives, the Science Channel's Head Rush, the Weather Channel's Weather Gone Viral, the Travel Channel's Mysteries at the Kremlin, Discovery International's Superhuman Science, the Science Channel's How Do They Do It?, the documentary Mortified Nation, and NPR's All Things Considered and The Moth Radio Hour. He is the author of Surviving Your Stupid, Stupid Decision to Go to Grad School (Random House, 2010), a satirical guide to post-baccalaureate education, and Pinball Wizards: Jackpots, Drains, and the Cult of the Silver Ball (Chicago Review Press, 2017), a narrative nonfiction book about the past, present, and future of pinball. Ruben is also known for writing the monthly science humor column "Experimental Error" in the AAAS journal Science Careers. Ruben frequently gives keynote lectures and performances about science, education, career-related topics, comedy, science communication, public perception of science, and performs his one-man show about bullying, Please Don't Beat Me Up: Stories and Artifacts from Adolescence.

[EX A]:
2