In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

Passage: About 460, Roman diplomat and bishop Sidonius Apollinaris sent a letter to Riothamus asking his help to quell unrest among the Brettones, British colonists living in Armorica; this letter still survives. In the year 470, Western Emperor Anthemius began a campaign against Euric, king of the Visigoths who were campaigning outside their territory in Gaul. Anthemius requested help from Riothamus, and Jordanes writes that he crossed the ocean into Gaul with 12,000 soldiers. The location of Riothamus' army was betrayed to the Visigoths by Arvandus, the jealous praetorian prefect of Gaul, and Euric defeated him in the Battle of Déols after Riothamus army was driven from Avaricum (Bourges) where he had been welcomed by the Bituriges before the fight. Riothamus was last seen retreating northward to Burgundy when Euric besieged Arvernum (Clermont-Ferrand) just south of the Bituriges territory.
 Link Information: A letter of Sidonius's addressed to Riothamus, "King of the Brittones" (c. 470) is of particular interest, since it provides evidence that a king or military leader with ties to Britain lived around the time frame of King Arthur. The best edition is that in the Monumenta Germaniae Historica (Berlin, 1887), Answer: Berlin
Where is the letter that Sidonius Apollinaris sent to Riothamus currently being held?

Passage: On February 12, 2004, it was announced that Fisher had switched from Dreyer & Reinbold Racing to Kelley Racing; the team expressed its hope of taking part for the majority of the 2004 season but Fisher did not contest the season-opening Toyota Indy 300 due to a lack of sponsorship. Two months later, Fisher entered the Indianapolis 500 in Kelley's No. 39 Dallara Toyota Indy V8 entry after they received sponsorship for the event. She qualified in 19th and finished the rain-shortened race in 21st. Afterward she sought another team for which to drive. Later that year, Fisher made her stock car racing debut, entering a NASCAR West Series (now NASCAR K&N Pro Series West) race in the No. 20 Bill McAnally Racing car at Phoenix after Richard Childress Racing (RCR) owner Richard Childress asked Bill McAnally if she could fill in for Kerry Earnhardt, who was competing in the EA Sports 500 at Talladega Superspeedway. Fisher qualified in 14th and finished in 21st place due to a battery failure after 104 laps.
 Link Information: Kelley Racing is a former Indy Racing League team founded by Fort Wayne, Indiana-based car dealer Tom Kelley Answer: Tom Kelley
Who founded the race team that Fisher switched to in 2004?

Passage: In 1979, Schwartz graduated from Miramar High School where he was a star soccer player. During his three high school seasons, he scored 104 goals. He then attended Appalachian State University where he played on the men's soccer team. He graduated in 1982 and was inducted into the school's Athletic Hall of Fame in 2005. In 1984, Schwartz turned professional Fort Lauderdale Sun of the United Soccer League. He was the Rookie of the Year and playoff MVP. In the fall of 1984, Schwartz had an unsuccessful trial with the Dallas Sidekicks of the Major Indoor Soccer League. He then returned to Florida where he coached the Hollywood Hills High School girls team and played for the amateur Lowenbrau Lions of the Gold Coast Soccer League's First Division. In 1985, the Sun moved and changed their name to the South Florida Sun. The team and the league collapsed six games into the season. Schwartz then worked as a carpenter, coached Hollywood High and played for the Lowenbrau Lions. In 1986, Andrew College hired Schwartz took start a women's soccer team at the college. In 1986, he played for the Houston Dynamos. In March 1988, he signed with the Fort Lauderdale Strikers of the American Soccer League. He then started the Strikers first game of the 1989 season, but didn't play after that. He asked for and was granted his release from the team in May. Starting in August 2015, Mark has been working as a Project Engineer for Bernhardt Design in Lenoir, North Carolina.
 Link Information: The league comprised ten teams on the East Coast. Answer: ten teams

How many teams comprise the league that Schwartz played in when he signed with the Fort Lauderdale Strikers?