Question: Where is the college that Stephen Williams is currently coach of located?

Context articles: Charles Atsina
Mario Marinică
David Addleton
Immanuel College (Australia)
Wolfgang Sühnholz
Mukhtor Kurbonov
Mike Ruddock
Stephen Williams (footballer)
Kevin Keen
Mohamed Nazeeh

Charles Buaku Atsina Junior He is a Ghanaian and Italian naturalized professional footballer resident in London and currently playing for Vllanzia in the Albanian Superliga.
Born on the 24th March 1989, grew up in Italy where he started his Football academy coached by Vittorio Zerpelloni http://www.calciatori.com/calciatore/zerpelloni-vittorio who was also a professional player from the Italian serie A&B.
Atsina speaks four European languages Italian,English,Spanish and German In 2012, he joined AD Alcorcon The Liga Adelante, The 2nd Division club in Madrid With a Deal of €250k for a 1/2year deal plus 1year option,2013 discovered by the scout of Vfl Wolfsburg Frank Benatelli ex professional player and currently coach of Csv Bochum, In 2014, he joined the German side Csv Bochum with 24 appearance 20 goals And 7 Goals in The kreispokal.
 In 2015, he joined Tus Ennepetal with 22 appearance 5goals in the league and 5goals just in the 1st game of kreispokal https://www.derwesten.de/sport/lokalsport/ennepetal-gevelsberg-schwelm/widerstand-haelt-nur-eine-stunde-id9963722.html.
 Currently playing for the Finnish club Käpylän Pallo based in Helsinki.
 A very well known player in Bochum (Germany)for his record goals
Mario Marinică (born 13 December 1964) is a football manager and coach, currently coach at Azam F.C..
David Addleton is currently coach at Rugby Lions.
 He is a former forwards coach and interim head coach of Coventry R.F.C. where he enjoyed a legendary playing career as a hooker between 1989 and 2005.
Immanuel College, is a Lutheran school in Adelaide, South Australia.
 It is the only Lutheran college in Adelaide that has boarders.
 Its sister schools include Concordia College in Adelaide, Johann-Sebastian-Bach-Gymnasium in Windsbach, Germany and Kyushu Lutheran College in Kumamoto, Japan.
Wolfgang Sühnholz (born 14 September 1946 in Berlin) is an American soccer coach and former player from Germany.
 He is currently coach of the Austin Aztex U23 and a coach at Austin's Lonestar Soccer Club.
Mukhtor Kurbonov (Uzbek: "Мухтор Қурбонов" ) (born 26 January 1975) is former Uzbek professional footballer and coach.
 He currently coach of Shurtan.
 As player he played in position of midfielder.
Mike Ruddock, OBE (born 5 September 1959 in Blaina) is a Welsh rugby union coach, currently coach of Lansdowne FC .
 Ruddock was the Director of Rugby at the Worcester Warriors until his resignation on 28 April 2010.
 Previously, Ruddock was the coach of the Welsh national rugby union team from 2004 until February 2006 and Leinster Coach from 1997 to 2000
Stephen Williams (born 5 June 1961) is a former Australian rules footballer in the South Australian National Football League, playing for the Port Adelaide Magpies and is currently an assistant development coach at Port Adelaide Power and head coach of the Immanuel College first XVIII.
Kevin Ian Keen (born 25 February 1967) is an English former professional footballer, coach and manager.
 He is currently coach at Crystal Palace.
Mohamed Nazeeh (born 15 June 1975) is a Maldivian football coach, and former player.
 He is currently coach of VB Addu FC.