Question: How many stores does the main feature of the Oaklands Park suburb contain?
Context: Elder is an electoral district of the House of Assembly in the Australian state of South Australia.  It is named after nineteenth-century businessman and philanthropist Thomas Elder.  Elder is a 15.7 km² urban electorate in Adelaide's south-west, taking in the suburbs of Ascot Park, Clovelly Park, Marion, Melrose Park, Mitchell Park and Park Holme, and parts of Colonel Light Gardens, Daw Park, Edwardstown, Oaklands Park, Plympton Park, South Plympton and Warradale. Park Holme is a southern suburb of Adelaide in the City of Marion, South Australia, home to the Marion Swimming Centre.  It is bordered in the east by Marion Road, in the west by Hendrie Street, in the south by Oaklands Road, and in the north by Taranna Ave, just south of Bray Street.  It is adjacent to Ascot Park, Edwardstown, South Plympton, Mitchell Park, Clovelly Park, Glengowrie, Morphettville and Oaklands Park.  Park Holme The South Australia Aquatic and Leisure Centre is a swimming venue located in the Adelaide suburb of Oaklands Park in South Australia.  The centre is managed by the YMCA on behalf of the Government of South Australia. The Legends All Star is a Legends car race at Charlotte Motor Speedway.  In the first year of the Legends All Star (then known as the Legends Million), 300+ Legends cars and 50 Bandoleros showed up.  The 2nd annual Legends Million was announced on June 14, 2011 during the 2nd round of the track's Summer Shootout Series in the drivers meeting that the race will come back and will be on August 1 and 2.  The first Legends Million had a million dollar purse with $250,000 to the winner of the main feature.  The 2011 edition of the Big Money 100 will have a $100,000 purse with $25,000 to the winner of the main feature, $5,000 to the Master's feature winner and $4,000 to the winner of the Semi-Pro/Young Lions feature.  The Legends All Star replaced the Legends Big Money 100 event in 2013 and ran on the same night as Liftmaster Pole Night for the NASCAR Sprint Cup Series on the May race weekend.  Tyler Green won the rain-shorten event.  46 cars between 4 divisions (Pro, Semi-Pro, Masters & Young Lions) entered the event.  Charlotte Motor Speedway did not continue the event in 2014. Oaklands railway station is located on the Seaford line.  Situated in the south-western Adelaide suburb of Oaklands Park, it is 13 kilometres from Adelaide station. Westfield Marion is the largest shopping complex in Adelaide, South Australia, located in Oaklands Park, serving greater Southern Adelaide.  It contains approximately 341 stores, with anchor tenants including David Jones, Myer, Harris Scarfe, Target, Kmart, BIG W, Woolworths, Coles, Event Cinemas, Aldi and Rebel Sport.  The Event Cinema complex on the third level of Westfield Marion is the Southern Hemisphere's largest cinema complex, featuring 26 screens.  The centre houses all of Westfield's management in Adelaide, located in an 8-storey office block to the east of the centre, as well as services including; legal, child care, health and dental clinic.  It also houses the head office for Fellas Gifts.  The office tower is located at the original mall where the food court is facing Diagonal Road.  Nick Scali Furniture and Bunnings Warehouse are located to the west of the centre.  The South Australia Aquatic and Leisure Centre is also a part of Westfield Marion. Roman Glass St George Football Club is a football club based in the Bristol suburb of St George, Bristol, England.  Founded in 1872, they are the oldest club in Bristol.  They are currently members of the Western League Division One and play at Oaklands Park.  The club is affiliated to the Gloucestershire County FA. Oaklands Park is a southern suburb of Adelaide, South Australia in the City of Marion.  The Marion Shopping Centre is a major feature of the suburb. Mitchell is an electoral district of the House of Assembly in the state of South Australia.  It was first created in the redistribution of 1969, taking effect at the 1970 election.  Mitchell is named after philosopher Sir William Mitchell.  Mitchell is located in inner-south western Adelaide, covering 26.8 km² and encompassing the suburbs of Dover Gardens, Old Reynella, Reynella, Seacombe Gardens, Seacombe Heights, Seaview Downs, Sheidow Park, Sturt and Trott Park and parts of Darlington, O'Halloran Hill, Oaklands Park and Warradale.  The suburbs contained within the seat in 2010 were completely different as recently as 1989.  The 1989 seat centered on Park Holme, north-east of the current incarnation of Mitchell, where much of the seat of Elder is.  The 1989 boundary bordered the 2010 boundary in the south-west and north-east respectively. The 1978 Keith Prowse International, also known as the Chichester International, was a women's tennis tournament played on outdoor grass courts at Oaklands Park in Chichester in England.  The event was part of the A category of the 1978 Colgate Series.  It was the eighth edition of the tournament and was held from 12 June through 16 June 1978.  First-seeded Evonne Goolagong Cawley won the singles title and earned $6,000 first-prize money.
Answer: 341