Question: What is the home ground of the Australian semi-professional soccer team that, along with the team nicknamed "The Zebras", eliminated an A-League team in the FFA Cup?
Context: The 2017 FFA Cup preliminary rounds is the qualifying competition to decide 21 of the 32 teams which will take part in the 2017 FFA Cup Round of 32, along with the 10 A-League clubs and reigning National Premier Leagues champion (Sydney United 58).  The preliminary rounds will operate within a consistent national structure whereby club entry into the competition is staggered in each federation, with the winning clubs from Round 7 of the preliminary rounds in each member federation gaining entry into the Round of 32.  All Australian clubs are eligible to enter the qualifying process through their respective FFA member federation, however only one team per club is permitted entry in the competition. Bentleigh Greens Soccer Club is an Australian semi-professional soccer club based in Cheltenham, a suburb of Melbourne, Victoria.  The club was formed in 1986, by the Greek Cypriot community and currently competes in the National Premier Leagues Victoria.  Bentleigh made nationwide headlines when it became the first club below the A-League to make the semi-final of the FFA Cup in 2014.  The Greens hit another milestone a year later when they claimed their first major title, defeating South Melbourne FC in the 2015 NPL Victoria Grand Final at Lakeside Stadium.  In 2016, Bentleigh Greens became Victorian top-flight league premiers for the first time. Adelaide City Football Club is an Australian football (soccer) club based in Adelaide, South Australia.  They are also known as "The Zebras" and "the Black and Whites".  The club, which competed in the National Soccer League for 27 seasons and is one of Australia's most decorated sides, has won three national championships and 17 South Australian championships.  Since it withdrew from the NSL just before the league's final season began in 2003, Adelaide City has competed in the National Premier Leagues South Australia. Blacktown City Football Club is an Australian semi-professional soccer club based in Blacktown, New South Wales.  Founded in 1953, the club currently competes in the National Premier Leagues NSW.  Blacktown City's home ground is Lily Homes Stadium, in the suburb of Seven Hills.  Blacktown City are one of five state league teams to have eliminated an A-League team in the FFA Cup, along with Heidelberg United FC, Redlands United FC, Green Gully SC and Adelaide City FC. The 2015 FFA Cup preliminary rounds were a qualifying competition to decide 21 of the 32 teams which will take part in the 2015 FFA Cup Round of 32, along with the 10 A-League clubs and reigning National Premier Leagues champion (North Eastern MetroStars SC).  The preliminary rounds operated within a consistent national structure whereby club entry into the competition was staggered in each state/territory, with the winning clubs from Round 7 of the preliminary rounds in each member federation gaining direct entry into the Round of 32.  All Australian clubs were eligible to enter the qualifying process through their respective FFA member federation, however only one team per club was permitted entry in the competition.  Teams from the Northern Territory competed in this competition for the first time. Western Sydney Wanderers FC is an Australian soccer team who currently play in the A-League, the national domestic soccer competition.  Colloquially known as "Western Sydney", it was founded in 2012 as the tenth member of the then nine-team league.  The A-League competition consists of a Regular Season and a Finals Series of the top six teams, with the Premiership being awarded to the club who finishes on top of the table in the Regular Season, and the Championship to the winner of the Grand Final.  Winning either of those trophies qualifies a club for the AFC Champions League.  In 2014, Football Federation Australia started the FFA Cup, a knock-out cup competition based along the lines of England's FA Cup. The 2015 FFA Cup was the second season of the FFA Cup, the main national soccer knockout cup competition in Australia.  32 teams began competition in the competition proper (from the Round of 32), including all 10 A-League teams, the reigning National Premier Leagues Champion (North Eastern MetroStars from South Australia), and 21 Football Federation Australia (FFA) member federation teams determined through individual state-based preliminary rounds.  2015 marks the first season in which teams from all nine FFA member federations participate, with the Northern Territory participating for the first time. The 2014 FFA Cup was the inaugural season of the FFA Cup, the main national soccer knockout cup competition in Australia.  631 teams in total from around Australia entered the competition.  Only 32 teams competed in the competition proper (Round of 32), including the 10 A-League teams and 22 Football Federation Australia (FFA) member federation teams determined through individual state preliminary rounds held in early 2014 (and 2013 in the case of the ACT).  The FFA Cup competition proper commenced on 29 July 2014 and concluded with the FFA Cup Final on 16 December 2014.  which was brought forward from Australia Day in order to avoid a clash with the 2015 Asian Cup, which was hosted by Australia. The 2016 FFA Cup preliminary rounds were the qualifying competition to decide 21 of the 32 teams which took part in the 2016 FFA Cup Round of 32, along with the 10 A-League clubs and reigning National Premier Leagues champion (Blacktown City FC).  The preliminary rounds operated within a consistent national structure whereby club entry into the competition was staggered in each state/territory, with the winning clubs from Round 7 of the preliminary rounds in each member federation gaining entry into the Round of 32.  All Australian clubs were eligible to enter the qualifying process through their respective FFA member federation, however only one team per club was permitted entry in the competition. The Football Federation Australia Cup, commonly known as the FFA Cup, is the main national soccer knockout cup competition in Australia.  The annual competition is organised by and named after Football Federation Australia.  It features all the teams from the top division, the A-League, as well as from lower tiers in the Australian leagues, including the National Premier Leagues.  Teams enter the competition in progressional stages, with qualifying rounds used to determine which lower division teams eventually join those from the A-League in later stages of the cup.  It is currently sponsored by the Westfield Group and thus officially known as the Westfield FFA Cup.
Answer: Lily Homes Stadium