Question: South Australia's smallest electorate is the home of what football club?

Context paragraphs:
Jack Trengove: Jack Trengove (born 2 September 1991) is an Australian rules footballer who played for the Melbourne Football Club in the Australian Football League (AFL).  A midfielder, 1.85 m tall and weighing 88 kg , Trengove is capable of contributing as both an inside and outside midfielder.  After growing up in Naracoorte, South Australia, he moved to Adelaide to attend Prince Alfred College and played in the South Australian National Football League (SANFL) with the Sturt Football Club, where he played in the 2009 SANFL Grand Final.  He represented South Australia in the 2009 AFL Under 18 Championships, where he captained the side, received All-Australian honours and won the state most valuable player.  His achievements as a junior saw him considered as the potential number one draft pick in the 2009 AFL draft alongside Tom Scully, he was ultimately recruited by the Melbourne Football Club with the second selection in the draft.

Port Adelaide Football Club: The Port Adelaide Football Club is a professional Australian rules football club based in Alberton, Port Adelaide, South Australia.  The club's senior team plays in the Australian Football League (AFL) under the nickname Power, whilst its reserves and development teams compete in the South Australian National Football League (SANFL) under the nickname Magpies.  Port Adelaide is the oldest professional sporting club in South Australia and the fifth-oldest club in the AFL.  Since the club's first game on 24 May 1870, the club has won 36 South Australian league premierships, including six in a row.  The club also won the Champions of Australia competition on a record four occasions.  In 1997, the club joined the Australian Football League as the only pre-existing non-Victorian club—and subsequently added the 2004 AFL premiership to its achievements.

Electoral district of Unley: Unley is an electoral district of the House of Assembly in the Australian state of South Australia.  Named after the suburb of the same name, it is the state's smallest electorate at just 13 km² (5 sq mi).  It is an urban electorate in Adelaide's inner south, taking in the suburbs of Eastwood, Frewville, Fullarton, Glenside, Glenunga, Highgate, Hyde Park, Malvern, Myrtle Bank, Parkside, Unley, Unley Park as well as parts of Glen Osmond, Goodwood, Millswood and Wayville.

Adelaide United FC: Adelaide United Football Club is a professional soccer club based in Adelaide, South Australia, Australia.  The club participates in the A-League under licence from Football Federation Australia.  The club was founded in 2003 to fill the place vacated by Adelaide City and West Adelaide in the former National Soccer League (NSL), and is now the sole team from the state of South Australia in the A-League.  Adelaide United's home ground is Hindmarsh Stadium.  Adelaide United were premiers in the inaugural 2005–06 A-League season, finishing 7 points clear of the rest of the competition, before finishing third in the finals.  They were Premiers again in 2015/16 finishing just one point ahead of second place Western Sydney.  The Reds made the Grand Finals of the 2006–07, 2008–09 and 2015–16 seasons, losing the on the first two occasions to Melbourne Victory.

Adelaide Football Club: The Adelaide Football Club, nicknamed the Crows, is a professional Australian rules football club that competes in the Australian Football League (AFL).  The club is based in Adelaide, South Australia, playing its home matches at Adelaide Oval.  The club has its training and administration base at Football Park in West Lakes, where it previously played home matches between 1991 and 2013.  The club song is "The Pride of South Australia", to the tune of the Marines' Hymn.

Sedan Cambrai Football Club: Sedan Cambrai Football Club are an Australian rules football club based in the Murraylands region of South Australia that were initially formed in 1922 as Cambrai Sedan, a merger between the Sedan Football Club and the Cambrai Football Club.  The club initially participated in the Murray Ranges Football Association, temporarily shifting for one season (1925) to the Murray River Football Association before returning and in 1930 were renamed to Sedan Cambrai.  In 1936 the club went into recess until after World War II, when in 1947 it reformed and joined the Barossa & Murray Valley Football Association, lasting for four seasons before going into recess again in 1951.  In 1955 the club reformed again and returned to the Barossa & Murray Valley Association.  Sedan Cambrai had a short affiliation with the Gawler and District Football Association's AII competition from 1957-1958 before shifting to the Torrens Valley Football Association AII competition in 1959.  When the TVFA merged into the new Hills Football League in 1967, Sedan Cambrai joined the Northern Division and then were placed in the Division 2 competition when the Hills League was restructured in 1972.  In 1975, Sedan Cambrai merged with the Mount Torrens Football Club to form the Mount Torrens Cambrai Football Club.  This merger would only last for ten years before the club split back into Sedan Cambrai and Mount Torrens in 1986.  The reformed Sedan Cambrai entered the Mid Murray Football Association and played in that competition until it disbanded at the end of the 2009 season when they returned to the Hills Football League Country Division (Division 2).  In 2015, Sedan Cambrai was voted out of the Hills Football League Division 2 competition by member clubs and were initially pushed into the C-Grade competition.  They were reinstated for the 2015 season before shifting to the Riverland Independent Football League in 2016.

Sturt Lions FC: Sturt Lions Football Club is an Australian semi-professional football club in Adelaide, South Australia.  Nicknamed the Lions, Sturt are associated with FFSA, and they currently play in the NPL State League.  The league is a second tier-league in South Australia and third-tier nationally.  The club, while based in the suburbs in and around the city of Mitcham, currently play their senior home games at Adelaide Shores Football Centre in West Beach, While also having a successful junior program.

Unley, South Australia: Unley is an inner-southern suburb of Adelaide, South Australia, within the City of Unley.  The suburb is the home of the Sturt Football Club in the South Australian National Football League (SANFL).  Unley neighbours Adelaide Park Lands, Fullarton, Hyde Park, Malvern, Parkside and Wayville.

Stephen Kernahan: Stephen Scott Kernahan (born 1 September 1963 in Adelaide, South Australia) is a former Australian rules football player and administrator best known for his playing careers with the Carlton Football Club of the Australian Football League and the Glenelg Football Club of the SANFL from 1981 until 1997.  He also played 13 State of Origin games for South Australia and gained selection as an All-Australian five times (1983, 1986, 1988, 1992 and 1994).  He later served for six years as president of the Carlton Football Club.

North Adelaide Football Club: The North Adelaide Football Club, nicknamed the Roosters, is an Australian rules football club currently affiliated with the South Australian National Football League (SANFL).  The club plays its home games at Prospect Oval, located in Prospect, a northern suburb of Adelaide, South Australia.  The club was formed in 1888 as the Medindie Football Club, changing its name to North Adelaide in 1893.  North Adelaide's first premiership was won in 1900, and the club has won a total of thirteen senior premierships during its time in the league, most recently in 1991.

Supporting paragraphs: Electoral district of Unley Unley, South Australia
Answer: Sturt Football Club