Question: Where was EB Games Expo 2015 held that is also used for the Sydney Royal Easter Show?

Context paragraphs:
EB Games Australia: EB Games Australia (originally Electronics Boutique) is an Australian video game and entertainment software retailer.  Headquartered in Eagle Farm, Queensland (a suburb of Brisbane), the company operates over 380 stores across Australia's six states and two territories and 40 more stores in New Zealand.  EB Games Australia is part of GameStop.  EB Games sells video games, consoles, and accessories for the PlayStation 3, PlayStation 4, PlayStation Portable, PlayStation Vita, PlayStation 2, PlayStation, Xbox 360, Xbox, Xbox One, Wii, Nintendo GameCube, Nintendo 64, Wii U, PC, Nintendo DS and the Nintendo 3DS.  Customers can also purchase games online from the EB games website.

Sydney Royal Easter Show: The Sydney Royal Easter Show, also known as the Royal Easter Show or simply The Easter Show or (to exhibitors) The Royal, is an annual show held in Sydney, Australia over two weeks around the Easter period.  It is run by the Royal Agricultural Society of New South Wales and was first held in 1823.  Queen Victoria awarded the society and its show the right to use the word "Royal" in its name.

Sydney Showground (Moore Park): The former Sydney Showground at Moore Park was the site of the Sydney Royal Easter Show in New South Wales, Australia from 1882 until 1997, when the Show was moved to the new Sydney Showground at Homebush Bay, which was built for the Sydney 2000 Olympics.  The old site was then leased to News Corporation on a 99-year lease from the Government of New South Wales to be used for the site of Fox Studios Australia, and is now part of The Entertainment Quarter.

Auckland Easter Show: The Auckland Easter Show (sometimes referred to as the "Royal Easter Show" or "Cola-Cola Easter Show") is a heritage event held annually during Easter in Auckland, New Zealand.  It originated in the 19th century and has included agricultural events, art exhibitions, live entertainment, sporting events, carnival rides, a marketplace and circuses.  The Easter Show was held at the Epsom Showgrounds in Epsom.

Thomas Mayne (inventor): Thomas Mayne (25 December 1901 – 25 January 1995) was an Australian industrial chemist.  He was also a food researcher and the inventor of Milo, the powdered chocolate-malt drink.  In 1934, Mayne developed Milo and launched it at the Sydney Royal Easter Show.  Milo began production at the plant located in Smithtown, near Kempsey on the north coast of New South Wales.  The name was derived from the famous ancient athlete Milo of Croton, after his legendary strength.

Sydney Showground (Olympic Park): The Sydney Showground is a purpose built venue used each year for the Sydney Royal Easter Show.  Located at Sydney Olympic Park in Sydney, New South Wales, Australia, it was opened in 1998, as a venue for the 2000 Summer Olympics and to replace the ageing old Sydney Showground at Moore Park.  Sydney Showground is operated by the Royal Agricultural Society of NSW (RAS), under lease from the NSW Government.

EB Games Expo 2016: The EB Games Expo 2016, commonly known as simply EB Expo 2016, is an international video game and accessory trade show, which was at the Sydney Showground from 30 September through to 2 October 2016.  Open to the general public, it was the sixth annual running of the EB Games Expo, organized by EB Games Australia.  The expo featured upcoming and recently released games from nine publishers so far exhibiting at the expo, along with various companies that exhibited new technologies in video game accessories.

S. John Ross (artist): Sebastian John Ross (April 24, 1919 – August 24, 2008), known as S. John Ross (The Silhouette Man or The Master of the Silhouette) was an American-born Australian caricature artist and showman, famous for his miniature silhouette portraits cut in black card and mounted on a white background.  He made numerous media appearances and became a well-known identity at annual shows such as the Sydney Royal Easter Show and the Brisbane Ekka, where he worked each year for about 60 years.  He was regarded within his lifetime as "a legend".

EB Games Expo: EB Games Expo, commonly known as EB Expo or EBX, is a video game trade fair / convention held annually in Australia.  It is organised by EB Games Australia.  It is used by many video game developers to show off their upcoming games and game-related hardware.  Unlike E3, EB Expo allows members of the general public to attend.  The most recent show was held in 2016 from 30 September to 2 October.

EB Games Expo 2015: EB Games Expo 2015, commonly known as simply EB Expo 2015, was an international video game and accessory trade show, open to the general public, held at the Sydney Showground in October 2015.  The Expo was the fifth running of the EB Games Expo, held annually by EB Games Australia, and featured upcoming and recently released games from video game industry developers and publishers, as well as new technologies in video game accessories.

Supporting paragraphs: EB Games Expo 2015 Sydney Showground (Olympic Park)
Answer: Sydney Showground