Question: What country was the American former long distance runner, who was coached by Bill Squires and is now a track coach himself, born in?

Context paragraphs:
Sreten Ninković: Sreten Ninković (Serbian Cyrillic: Сретен Нинковић; born 7 December 1972) is a Serbian former long distance runner who most often competed in the marathon.  He was coached by Lazar Ćirović, Slavoljub "Slavko" Kuzmanović, and Zvonko Lozančić.  In the course of his athletic career, Ninković represented FR Yugoslavia, Serbia and Montenegro, and Serbia.

Kaarlo Maaninka: Kaarlo Hannes Maaninka (born 25 December 1953) is a Finnish former long distance runner who won a silver medal in the 10,000 metres and a bronze medal in the 5,000 metres at the 1980 Moscow Olympics.  He later admitted that he had used blood transfusions at the 1980 Olympics, though this was not against the rules at that time.

Thomas Patrick Callaghan: Thomas Patrick Callaghan "T.P. Callaghan" (born 1938) in "Bailieborough" was a long distance runner.  Callaghan was a popular long distance runner in the 1950s and 1960s who ran in both cross country and road races throughout Ireland and also represented Ireland on many occasions in races all over Europe.  He was the first winner of the Cavan Cross Country Cup.

Alberto Salazar: Alberto Salazar (born August 7, 1958) is an American track coach and former world-class long-distance runner.  Born in Cuba, Salazar immigrated to the United States as a child with his family.  They moved to Manchester, Connecticut and then to Wayland, Massachusetts, where Salazar competed in track and field in high school.  Salazar is best known for his performances in the New York City Marathon in the early 1980s and his 1982 Boston Marathon victory known as the "Duel in the Sun."  He held American track records of 13:11.93 for 5,000 m (July 6, 1982 – Stockholm) and 27:25.61 for 10,000 m – (June 26, 1982 – Oslo).

Henry Moyo (athlete): Henry Moyo (born 8 February 1972) is a Malawian former long distance runner who competed in the 1996 Summer Olympics.

Bill Squires: William Squires is an American track and field coach.  He is well known for coaching the Greater Boston Track Club at the height of its marathon success, including marathoner Bill Rodgers, Alberto Salazar, Dick Beardsley and Greg Meyer.

Jeff Nelson (runner): Jeff Nelson is an American former long distance runner.  He was a high school phenom at Burbank High School (Burbank, California), where he set the national high school record in the 2 mile run, the predecessor to today's 3200 meter run, at 8:36.3.  He set the record before a national television audience, running in open competition at the Pepsi Invitational, May 6, 1979 at the University of California, Los Angeles.

Salvatore Antibo: Salvatore Antibo (born 7 February 1962) is a former long distance runner from Italy.

Tonnie Dirks: Antonius Marinus Hendricus Maria "Tonnie" Dirks (born 12 February 1961 in Zeeland, North Brabant) is a Dutch former long distance runner.  He competed internationally on the track, road, and also in cross country competitions.

Mo Trafeh: Mo Trafeh is an American former long distance runner.

Supporting paragraphs: Bill Squires Alberto Salazar
Answer: Cuba