Question: Which part of the United Kingdom was the venue for the 2003 Special Olympics World Summer Games roller skating events?

Context paragraphs:
Jackie Barrett: John "Jackie" Barrett (born April 25, 1974) is a Canadian powerlifter.  Barrett, who is autistic, has amassed thirteen gold medals competing for Canada in the Special Olympics World Summer Games and retired after setting three Special Olympics records at the 2015 Special Olympics World Summer Games in Los Angeles.

National Aquatic Centre: The National Aquatic Centre (NAC) (Irish: "Ionad Náisiúnta Uisce" ) is an indoor aquatics facility in Dublin, Ireland.  The Centre houses a 50m swimming pool, diving pool, leisure pool and fitness centre.  Since opening in March 2003 it has hosted the swimming events of the 2003 Special Olympics World Summer Games, the 2003 European Short Course Swimming Championships and a number of international water polo events.

1995 Special Olympics World Summer Games: The Ninth Special Olympics World Summer Games were held in New Haven, Connecticut, United States on July 1–9, 1995.  More than 7,000 athletes from 143 countries gathered for competition in 21 sports.  The opening and closing ceremonies were held in the Yale Bowl, and various events were held around the New Haven area, including various events held in West Haven, Connecticut.  This was the first Special olympics world games that included unified sports.

Northern Ireland: Northern Ireland (Irish: "Tuaisceart Éireann" ] ; Ulster-Scots: "Norlin Airlann ") is a part of the United Kingdom in the north-east of the island of Ireland, variously described as a country, province or region.  Northern Ireland shares a border to the south and west with the Republic of Ireland.  In 2011, its population was 1,810,863, constituting about 30% of the island's total population and about 3% of the UK's population.  Established by the Northern Ireland Act 1998 as part of the Good Friday Agreement, the Northern Ireland Assembly holds responsibility for a range of devolved policy matters, while other areas are reserved for the British government.  Northern Ireland co-operates with the Republic of Ireland in some areas, and the Agreement granted the Republic the ability to "put forward views and proposals" with "determined efforts to resolve disagreements between the two governments".

Barra Velodrome: The Barra Velodrome was a track cycling venue located in Barra da Tijuca, in western Rio de Janeiro, and was one of three venues constructed as part of the City of Sports Complex for the 2007 Pan American Games, where it hosted track cycling and speed roller skating events.  The venue was initially slated to host cycling events for the 2016 Summer Olympics, but was instead demolished in favour of the replacement Rio Olympic Velodrome, after the International Cycling Union (UCI) deemed the venue unsuitable for the games.  The Olympic Aquatics Stadium now occupies the former site of the velodrome.

2019 Special Olympics World Summer Games: The 2019 Special Olympics World Summer Games are a multi-sport event for athletes with intellectual disabilities in the tradition of the Special Olympics movement.  They will be held in Abu Dhabi, United Arab Emirates From March 14–21, 2019.

2015 Special Olympics World Summer Games: The 2015 Special Olympics World Summer Games were a multi-sport event for athletes with intellectual disabilities held in Los Angeles, United States from July 25 to August 2, 2015, in the tradition of the Special Olympics movement.

2003 Special Olympics World Summer Games: The 2003 Special Olympics World Summer Games were hosted in Ireland, with participants staying in various host towns around the island in the lead up to the games before moving to Dublin for the events.  Events were held from 21–29 June 2003 at many venues including Morton Stadium, the Royal Dublin Society, the National Basketball Arena, all in Dublin.  Croke Park served as the central stadium for the opening and closing ceremonies, even though no competitions took place there.  Belfast, Northern Ireland was the venue for roller skating events (at the Kings Hall), as well as the Special Olympics Scientific Symposium (held from 19–20 June).

Fly (Avril Lavigne song): "Fly" is a song by Canadian recording artist Avril Lavigne.  It was released on April 16, 2015, for digital download by the Special Olympics, Inc.  Lavigne released the song as a charity single for The Avril Lavigne Foundation to support the 2015 Special Olympics World Summer Games.  The song was written by Lavigne, Chad Kroeger and David Hodges.  All the proceeds from the single will be contributed to the ongoing work being done by the Avril Lavigne Foundation.

Eunice Kennedy Shriver Stadium: The Eunice Kennedy Shriver Stadium (formerly Special Olympics Stadium) is a stadium in Brockport, New York.  Located on the campus of State University of New York College at Brockport it is primarily used by the Brockport Golden Eagles.  The stadium holds 11,000 people and was built in 1979.  It was originally built for the 1979 Special Olympics World Summer Games that were held in Brockport.  Brockport’s American football, field hockey, men's and women's soccer, lacrosse and outdoor track and field teams host their home games at Eunice Kennedy Shriver Stadium.  The Rochester River Dogz FC soccer club played here in 2016.

Supporting paragraphs: 2003 Special Olympics World Summer Games Northern Ireland
Answer: Northern Ireland