Question: The carriages for the New South Wales Xplorer were built in a suburb of what Australian city? 

Context paragraphs:
Buses in Sydney: Buses account for close to six per cent of trips each day in the Australian city of Sydney, New South Wales, forming a key part of the city's public transport system.  The network initially evolved from a privately operated system of feeder services to railway stations in the outer suburbs, and a publicly operated network of bus services introduced to replace trams in the inner suburbs.  The bus network has undergone major reform in recent years, with the New South Wales Government taking responsibility for route and fare-setting, opening contracts for most routes up to competitive tendering, and introducing more cross-regional services.

New South Wales: New South Wales (abbreviated as NSW) is a state on the east coast of :Australia.  It borders Queensland to the north, Victoria to the south, and South Australia to the west.  Its coast borders the Tasman Sea to the east.  The Australian Capital Territory is an enclave within the state.  New South Wales' state capital is Sydney, which is also Australia's most populous city.  In March 2014 , the estimated population of New South Wales was 7.5 million, making it Australia's most populous state.  Just under two-thirds of the state's population, 4.67 million, live in the Greater Sydney area.  Inhabitants of New South Wales are referred to as "New South Welshmen".

Sydney Ferries: Sydney Ferries is the public transport ferry network serving the Australian city of Sydney, New South Wales.  Services operate on Sydney Harbour and the Parramatta River.  The network is controlled by the New South Wales Government's transport authority, Transport for NSW, and is part of the authority's Opal ticketing system.  In 2016-17, 14.7 million passenger journeys were made on the network.

Dandenong, Victoria: Dandenong is a suburb of Melbourne, Victoria, Australia, approximately 30 km south-east from Melbourne's central business district.  Situated on the Dandenong Creek, it is at the foothill of the Dandenong Ranges and is the main administrative centre for the City of Greater Dandenong local government area.  At the 2011 Census, central Dandenong had a population of 24,919.

Collina, New South Wales: Collina is a suburb of the Australian city of Griffith in the Riverina region of New South Wales.  The suburb is in the City of Griffith local government area.  Collina is 4 km northwest of the Griffith city centre and reflects the city's rapid growth in the early 2000s.

CountryLink: CountryLink was an Australian passenger rail and road operator operating in regional New South Wales, as well as to Canberra, Brisbane and Melbourne.  It was owned by RailCorp, a Government of New South Wales entity.  CountryLink operated rail services using XPT and Xplorer rolling stock, with connecting coach services operated under contract by private operators.

Light rail in Sydney: The Sydney light rail network is a light rail system serving the Australian city of Sydney, New South Wales.  The network currently consists of a single 12.8 km line of 23 stations.  A second line is under construction and two further lines serving Western Sydney have been announced.  The network is controlled by the New South Wales Government's transport authority, Transport for NSW, and is part of the authority's Opal ticketing system.  In 2016-17, 9.1 million passenger journeys were made on the network.

Macdonaldtown Carriage Sheds: The Macdonaldtown Carriage Sheds was a facility for the stabling of passenger carriages used on country railway services in New South Wales, Australia.  Built by the New South Wales Government Railways in the inner Sydney suburb of Macdonaldtown, it was located in a triangle between the Main Suburban and Illawarra lines.

New South Wales Xplorer: The Xplorer is a diesel multiple unit train operated by NSW TrainLink on regional rail services in New South Wales, Australia from Sydney to Armidale, Moree, Broken Hill, Griffith and Canberra.  The first Xplorers entered service in October 1993, and are mechanically identical to but feature a higher level of passenger amenity than the Endeavour railcars.  All 23 carriages were built by ABB Transportation in Dandenong, Victoria.

Matt McCoy (rugby league): Matt McCoy (20 December 1923 – 20 February 2007) was an Australian professional rugby league footballer of the 1940s and 50s, and an inductee of the St. George Illawarra Dragons Hall of Fame.  An Australian international and New South Wales interstate representative goal-kicking centre, he played in Sydney's New South Wales Rugby Football League for the St. George club, with whom he won the 1949 NSWRFL Premiership.  McCoy also played for Sydney's Eastern Suburbs club, and in Country New South Wales and Queensland as a captain-coach, representing both City and Country New South Wales, as well as Central Queensland during his career.

Supporting paragraphs: New South Wales Xplorer Dandenong, Victoria
Answer: Melbourne, Victoria, Australia