In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.
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Question: Passage: "Don't Stop the Music" debuted at number 94 on the US Billboard Hot 100 chart in the issue dated December 8, 2007, and peaked at number three on February 16, 2008, becoming Rihanna's fourth top-three single. It topped the US Dance Club Songs chart (Rihanna's sixth number-one single), reached number two on the Pop Songs chart and number 74 on the Hot R&B/Hip Hop Songs chart. "Don't Stop the Music" had sold 3.7 million digital copies in the US as of June 2015, and has been certified four-times platinum from the Recording Industry Association of America (RIAA). The song reached number two on the Canadian Hot 100, remaining on the chart for a total of 52 weeks. It was Rihanna's second song to reach the chart's top three, following "Umbrella".In Australia, "Don't Stop the Music" debuted at number 22 on February 3, 2008. After three weeks, on February 24, the song peaked at number one and remained there for four weeks. It was Rihanna's third number-one single in the country, after "SOS" and "Umbrella", remaining on the chart for 27 weeks. "Don't Stop the Music" charted at number 12 on the 2008 year-end Australian Singles Chart. In 2015, the song was certified five times platinum by the Australian Recording Industry Association (ARIA) for sales of over 350,000 digital copies. The single debuted at number 31 in New Zealand on October 12, 2007. After fluctuating for four weeks, it peaked at number three for a week and spent a total of 22 weeks on the chart. "Don't Stop the Music" was certified gold by the Recording Industry Association of New Zealand (RIANZ) in April 2008 for sales of over 7,500 digital copies.In the United Kingdom, the song debuted at number 68 on December 15, 2007. After seven weeks on the chart, it peaked at number four. In July 2013, the song was certified gold by the British Phonographic Industry (BPI) for sales of over 400,000 digital copies. The single was 24 on the 2008 year-end UK Singles Chart. "Don't Stop the Music" debuted atop the French Singles Chart on October 27, 2007, Rihanna's first number-one single on the chart. Remaining at number one for two weeks, the song spent a total of 34 weeks on the chart. On the German Singles Chart, it debuted at number two on September 24, 2007. After two weeks, it reached number one, staying there for two consecutive weeks. "Don't Stop the Music" was certified gold by the Bundesverband Musikindustrie for shipments of 100,000 copies. It was successful on the Swiss Singles Chart, peaking at number one for five weeks. The song reached number one in Austria, Flanders and Wallonia in Belgium, Hungary and the Netherlands. 
Question: In what country did the song that reached number two on the Canadian Hot 100 debut at number 31?

Answer: New Zealand.


Question: Passage: Most historians describe the contacts between the Mongol Empire and the Western Europeans as a series of attempts, missed opportunities, and failed negotiations. Christopher Atwood, in the 2004 Encyclopedia of Mongolia and the Mongol Empire, summed up the relations between Western Europe and the Mongols: "Despite numerous envoys and the obvious logic of an alliance against mutual enemies, the papacy and the Crusaders never achieved the often-proposed alliance against Islam."A few other historians argue there was an actual alliance, but do not agree on the details: Jean Richard wrote that an alliance began around 1263. Reuven Amitai stated that the closest thing to actual Mongol-Frankish military coordination was when Prince Edward of England attempted to coordinate activities with Abaga in 1271. Amitai also mentioned the other attempts towards cooperation, but said, "In none of these episodes, however, can we speak of Mongols and troops from the Frankish West being on the Syrian mainland at the same time." Timothy May described the alliance as having its peak at the Council of Lyon in 1274, but that it began to unravel in 1275 with the death of Bohemond, and May too admitted that the forces never engaged in joint operations. Alain Demurger, in his own book The Last Templar, said that an alliance was not sealed until 1300.There also continues to be debate about whether or not an alliance would have been a wise idea, and whether the Crusaders at that point in history were even relevant to the Persian-Mongol conflict. The 20th-century historian Glenn Burger said, "The refusal of the Latin Christian states in the area to follow Hethum's example and adapt to changing conditions by allying themselves with the new Mongol empire must stand as one of the saddest of the many failures of Outremer." This was similar to the view of Steven Runciman, who argued, "Had the Mongol alliance been achieved and honestly implemented by the West, the existence of Outremer would almost certainly have been prolonged. The Mameluks would have been crippled if not destroyed; and the Ilkhanate of Persia would have survived as a power friendly to the Christians and the West". However, David Nicolle, describing the Mongols as "potential allies", said that early historians were writing from the benefit of hindsight, and that overall the major players were the Mamluks and the Mongols, with Christians just "pawns in a greater game.". 
Question: Who did Jean Richard claim had an alliance around 1263?

Answer: Mongol Empire.


Question: Passage: In 1997, the Strokes consisted of singer Julian Casablancas, guitarist Nick Valensi, bassist Nikolai Fraiture, and drummer Fabrizio Moretti. Casablancas's stepfather and Moretti's and Fraiture's older brothers introduced the quartet to the music of reggae artist Bob Marley, protopunk group the Velvet Underground, and alternative rock band Jane's Addiction. Discussing the formative stages of the group, Moretti noted, "Our music was, like, [the Doors'], but trying to be classical. We all took music classes and tried writing songs, and when we put them together they were this crazy amalgam of insane ideas that we thought was really cool." In 1998, Albert Hammond, Jr., who Casablancas knew from his time at a Swiss boarding school, moved to New York City to attend film school and joined The Strokes as a second guitarist. His arrival provided the catalyst for the band's musical and emotional evolution.By 2000, all band members had part-time jobs and were practicing new material several nights a week in a small hired recording space. In the fall of that year, their demo caught the attention of Ryan Gentles, a talent booker at New York City's Mercury Lounge. He scheduled the Strokes for four December gigs. With support from personal mentor JP Bowersock and producer Gordon Raphael, the band recorded three tracks which later appeared on Is This It: "The Modern Age", "Last Nite", and "Barely Legal". British label Rough Trade Records was impressed by the songs and released them as a January 2001 extended play titled The Modern Age. Music press reaction was very positive and the Strokes embarked on a sold-out UK tour, followed by US support slots for alternative rock groups Doves and Guided by Voices. Gentles quit his job to manage the band full-time and, in March 2001, the Strokes signed to RCA Records after a protracted bidding war. 
Question: What is the first name of the person whose knew Hammond from their time at a Swiss boarding school?

Answer:
Julian.