Problem: Background: Bjorn Borg was born in Stockholm, Sweden, on 6 June 1956, as the only child of Rune and Margaretha Borg. He grew up in nearby Sodertalje. As a child, Borg became fascinated with a golden tennis racket that his father won at a table-tennis tournament. His father gave him the racket, beginning his tennis career.
Context: With 11 Grand Slam titles, Borg ranks sixth in the list of male tennis players who have won the most Grand Slam singles titles behind Roger Federer (20), Rafael Nadal (16), Pete Sampras (14), Roy Emerson (12), and Novak Djokovic (12). The French Open--Wimbledon double he achieved three times consecutively was called by Wimbledon officials "the most difficult double in tennis" and "a feat considered impossible among today's players." Only Nadal (in 2008 and 2010) and Federer (in 2009) have managed to achieve this double since, and Andre Agassi, Nadal, Federer and Djokovic are the only male players since Borg to have won the French Open and Wimbledon men's singles titles over their career. Ilie Nastase once said about Borg, "We're playing tennis, and he's playing something else".  In his 1979 autobiography, Jack Kramer, the long-time tennis promoter and great player himself, had already included Borg in his list of the 21 greatest players of all time. And in 2003, Bud Collins chose Borg as one of his top-five male players of all time.  In 2008, ESPN.com asked tennis analysts, writers, and former players to build the perfect open era player. Borg was the only player mentioned in four categories: defense, footwork, intangibles, and mental toughness--with his mental game and footwork singled out as the best in open era history.  Borg famously never won the US Open, losing in the final four times. Borg also never won the Australian Open, as he only played in the event once, in 1974 as a 17-year-old. The only players to defeat Borg in a Grand Slam final were fellow World No. 1 tennis players John McEnroe and Jimmy Connors. Even though it was then played on grass, a surface where he enjoyed much success, Borg chose to play the Australian Open only once, in 1974, where he lost in the third round. Phil Dent, a contemporary of Borg, has pointed out that skipping Grand Slam tournaments--especially the Australian Open--was not unusual then, before counting Grand Slam titles became the norm. Additionally, another contemporary Arthur Ashe told Sports Illustrated, "I think Bjorn could have won the U.S. Open. I think he could have won the Grand Slam, but by the time he left, the historical challenge didn't mean anything. He was bigger than the game. He was like Elvis or Liz Taylor or somebody."
Question: Were there any other tennis players mentioned?
Answer: Roger Federer (20), Rafael Nadal (16), Pete Sampras (14), Roy Emerson (12), and Novak Djokovic (12).

Problem: Background: Tinariwen (Tamasheq: , with vowels , pronounced tinariwen "deserts", plural of tenere "desert") is a Grammy Award-winning group of Tuareg musicians from the Sahara Desert region of northern Mali. The band was formed in 1979 in Tamanrasset, Algeria, but returned to Mali after a cease-fire in the 1990s. The group first started to gain a following outside the Sahara region in 2001 with the release of The Radio Tisdas Sessions, and with performances at Festival au Desert in Mali and the Roskilde Festival in Denmark. Their popularity rose internationally with the release of the critically acclaimed Aman Iman in 2007.
Context: Tinariwen was founded by Ibrahim Ag Alhabib, who at age four witnessed the execution of his father (a Tuareg rebel) during a 1963 uprising in Mali. As a child he saw a western film in which a cowboy played a guitar. Ag Alhabib built his own guitar out of a tin can, a stick and bicycle brake wire. He started to play old Tuareg and modern Arabic pop tunes. Ag Alhabib first lived in Algeria in refugee camps near Bordj Badji Mokhtar and in the deserts around the southern city of Tamanrasset, where he received a guitar from a local Arab man. Later, he resided with other Tuareg exiles in Libya and Algeria.  In the late 1970s, Ag Alhabib joined with other musicians in the Tuareg rebel community, exploring the radical chaabi protest music of Moroccan groups like Nass El Ghiwane and Jil Jilala; Algerian pop rai; and western rock and pop artists like Elvis Presley, Led Zeppelin, Carlos Santana, Dire Straits, Jimi Hendrix, Boney M, and Bob Marley. Ag Alhabib formed a group with Alhassane Ag Touhami and brothers Inteyeden Ag Ablil and Liya Ag Ablil in Tamanrasset, Algeria to play at parties and weddings. Ag Alhabib acquired his first real acoustic guitar in 1979. While the group had no official name, people began to call them Kel Tinariwen, which in the Tamashek language translates as "The People of the Deserts" or "The Desert Boys."  In 1980, Libyan ruler Muammar al-Gaddafi put out a decree inviting all young Tuareg men who were living illegally in Libya to receive full military training. Gaddafi dreamed of forming a Saharan regiment, made up of the best young Tuareg fighters, to further his territorial ambitions in Chad, Niger, and elsewhere. Ag Alhabib and his bandmates answered the call and received nine months of training. They answered a similar call in 1985, this time by leaders of the Tuareg rebel movement in Libya, and met fellow musicians Keddou Ag Ossade, Mohammed Ag Itlale (aka "Japonais"), Sweiloum, Abouhadid, and Abdallah Ag Alhousseyni. All sang and played guitar in various permutations. The musicians joined together in a collective (now known as Tinariwen) in order to create songs about the issues facing the Tuareg people, built a makeshift studio, and vowed to record music for free for anyone who supplied a blank cassette tape. The resulting homemade cassettes were traded widely throughout the Sahara region.  In 1989, the collective left Libya and moved to Ag Alhabib's home country of Mali, where he returned to his home village of Tessalit for the first time in 26 years. In 1990 the Tuareg people of Mali revolted against the government, with some members of Tinariwen participating as rebel fighters. After a peace agreement known as the Tamanrasset Accords was reached in January 1991, the musicians left the military and devoted themselves to music full-time. In 1992 some of the members of Tinariwen went to Abidjan, Cote d'Ivoire to record a cassette at JBZ studios. They played occasional gigs for far-flung Tuareg communities throughout the Sahara region, gaining word-of-mouth popularity among the Tuareg people.
Question: What else is interesting about the group?
Answer:
In 1980, Libyan ruler Muammar al-Gaddafi put out a decree inviting all young Tuareg men who were living illegally in Libya to receive full military training.