Question: Sam Willoughby (born 15 August 1991 in Bedford Park, South Australia) is an Australian BMX cyclist also known as 'the BMX bandit', Bedford Park is a southern suburb of where, in South Australia?

Context paragraphs:
Nicole Callisto: Nicole Callisto (born 12 November 1987 in Joondalup, Western Australia) is an Australian BMX cyclist who represented Australia at the 2008 Summer Olympics in Beijing.  She began riding when she was three and won the 2005 Junior World BMX Championships.

Kamakazi (BMX rider): Kamakazi (born Jamie Hildebrandt on 3 August 1981 in Brisbane) is an Australian BMX cyclist who was selected to compete at the 2008 Summer Olympics in Beijing.

Bedford Park, South Australia: Bedford Park is a southern suburb of Adelaide in South Australia.

Augusto Castro: Augusto Castro Herrera (born December 19, 1986 in Medellín) is a retired Colombian professional BMX cyclist.  He represented his nation Colombia at the 2008 Summer Olympics, and has claimed multiple Colombian national titles in the men's elite category and a prestigious gold medal in junior cruiser at the 2004 UCI BMX World Championships in Valkenswaard, Netherlands.  Before announcing his retirement in August 2013, Castro also raced and trained professionally for Psykopath Industries BMX Team.

Sam Willoughby: Sam Willoughby (born 15 August 1991 in Bedford Park, South Australia) is an Australian BMX cyclist also known as 'the BMX bandit'.  He competed in the men's BMX at the 2012 Summer Olympics, winning a silver medal on 10 August 2012 behind Māris Štrombergs of Latvia.

Amanda Sørensen: Amanda Sørensen (born November 18, 1985 in Skanderborg) is a retired Danish amateur BMX cyclist.  Having started her sporting career at the age of seven and been admitted to the Danish national cycling team since 2002, Sorensen has mounted numerous Nordic regional titles and top-eight finishes in BMX racing at the European Championships, and admittedly, participated in more than 300 BMX circuits across Australia, the United States, Brazil, and Europe.  Before retiring from the sport in September 2009, Sorensen also represented her nation Denmark at the 2008 Summer Olympics, and has been training with personal and head coach Christian Munk Poulsen for Skanderborg BMX Klub throughout her cycling career.

Luke Madill: Luke Madill (born 28 May 1980 in Sydney) is an Australian BMX cyclist who was selected to compete at the 2008 Summer Olympics in Beijing.  As preparation for the Olympics, Madill built a replica of the Beijing BMX course on his property at Cranebrook in western Sydney.

Tristyn Kronk: Tristyn Kronk or also known as TK (born 10 January 1996 in Mackay, Queensland) is an Australian BMX cyclist.  He has competed at numerous National and International competitions with a National title and World rankings in his achievements.

Anthony Dean (cyclist): Anthony Dean (born 22 April 1991) is an Australian BMX cyclist.  He competed in the men's BMX at the 2016 Summer Olympics.

Tanya Bailey: Tanya Bailey (born 15 March 1981 in Dampier, Western Australia) is an Australian amateur BMX cyclist.  Bailey has been a part of the national BMX cycling team for more than 10 years, but granted her first and only opportunity to represent her nation Australia at the 2008 Summer Olympics, where she became a semifinalist in the women's elite category.  In that same year, Bailey has also reached her ample success in the sport, finishing second at the Australian national championships and Supercross World Cup, both were held in Adelaide, South Australia.  Throughout her sporting career, Bailey has been training with her personal and assistant national coach Wade Bootes for the Wanneroo BMX Club in Gold Coast, Queensland.

Supporting paragraphs: Sam Willoughby Bedford Park, South Australia
Answer: Adelaide