Question: The Perfect Mile included accounts about the middle-distance runner and politician of what nationality?

Context paragraphs:
The Perfect Mile: The Perfect Mile: Three Athletes, One Goal, and Less Than Four Minutes to Achieve It (2004) by Neal Bascomb is a non-fiction book about three runners and their attempts to become the first man to run a mile under four minutes.  The runners are Englishman Roger Bannister, American Wes Santee, and Australian John Landy.  The book's climax is Bannister's breaking of the record on May 6, 1954.

Stepan Poistogov: Stepan Poistogov (born 14 December 1986) is a Russian middle-distance runner.  He competed in the 800 metre event at the 2014 IAAF World Indoor Championships.  He is married to fellow middle-distance runner Ekaterina Poistogova.

Sebastian Coe: Sebastian Newbold Coe, Baron Coe, {'1': ", '2': ", '3': ", '4': "} (born 29 September 1956), often referred to as Seb Coe or Lord Coe, is a British politician and former track and field athlete.  As a middle-distance runner, Coe won four Olympic medals, including the 1500 metres gold medal at the Olympic Games in 1980 and 1984.  He set eight outdoor and three indoor world records in middle-distance track events – including, in 1979, setting three world records in the space of 41 days – and the world record he set in the 800 metres in 1981 remained unbroken until 1997.  Coe's rivalries with fellow Britons Steve Ovett and Steve Cram dominated middle-distance racing for much of the 1980s.

Maricica Puică: Maricica Puică (née Luca on 29 July 1950) is a retired Romanian middle-distance runner.  She is the 1984 Olympic champion in the 3000 metres.  One of the greatest female middle-distance runners of the 1980s, she also twice won the World Cross Country Championship (1982, 1984) and broke the world record for the mile in 1982.

Hicham El Guerrouj: Hicham El Guerrouj (Moroccan Arabic: هشام الݣروج , Berber: Hicam El Gerruj, ⵀⵉⵛⴰⵎ ⴻⵍ ⴳⴻⵔⵔⵓⵊ; born 14 September 1974) is a retired Moroccan middle-distance runner.  El Guerrouj is the current world record holder in the 1500 meters, mile and outdoor 2000 meters events and a two-time Olympic gold medalist.  He is considered the greatest middle-distance runner of all time.

Craig Miller (runner): Craig Mason Miller (born August 3, 1987 in Lancaster, Pennsylvania, United States) is an American middle-distance runner who primarily competes in 1500 meters and mile run events.  He was an eight time All-American while competing for the University of Wisconsin, including a runner-up finish in the mile at the 2009 NCAA Track & Field Indoor National Championships.  In 2012 he won the Road One Mile USA Championship in Minneapolis, MN and later that year finished eighth at the Olympic Trials in Eugene, OR.  The following year he was second in the mile at the 2013 USA Indoor Track & Field National Championships in Albuquerque, NM.

John Gregorek: John Gregorek (born 15 April 1960) is an American former middle-distance runner who competed in the Summer Olympics in 1980 (boycotted) and 1984.  His son, John Gregorek Jr., is also a competitive middle-distance runner, who competed in the 2017 World Championships.

Mehdi Baala: Mehdi Baala (Arabic: مهدي بعلة‎ ‎ ; born 17 August 1978 in Strasbourg) is a French, middle-distance runner competing mainly in the 1500 metres event.  Baala has won several major international championships medals in the 1500 metres event – an Olympic Games bronze, a World Championships silver, two European Championships golds and a European Indoor Championships bronze.  Moreover, he has won several medals in the 1500 metres event of the European Cup, IAAF World Cup and the IAAF World Athletics Final.  Baala is considered to be the best French middle-distance runner of all time.  As of July 2013, he holds French national outdoor records for four distances (800m: 1.43.15, 1000m: 2.13.96, 1500m: 3.28.98 and 2000m: 4.53.12; all of these were set from 2002 to 2005) and French national indoor records for four distances (800m, 1000m, 1500m and the mile; all of these were set from 2003 to 2009).

John Landy: John Michael Landy (born 12 April 1930) is a retired Australian middle-distance runner and politician.  He was the second man to break the four-minute mile barrier in the mile run, and held the world records for the 1500 metre run and the mile race.  He was also the 26th Governor of Victoria from 2001 to 2006.

Ross Donoghue: Ross Donoghue (born July 19, 1959) is a former middle-distance runner who specialized in the 1500 meters and the mile.  He first rose to prominence as a standout high school runner with Bishop Cunningham High School from Oswego, New York.  He was recruited by Villanova, where he would establish himself as one of the most prolific 1500-meter and mile-specialists in the school's history.  Donoghue represented the United States at the 1983 Pan American Games, where he finished second overall in the men's 1500 meters.  In the course of his competitive career, he ran under four minutes in the mile on eight occasions.

Supporting paragraphs: The Perfect Mile John Landy
Answer: Australian