Question: What currency is used where Billy Giles died?

full_context: Document 1: Pub: The Lost Pubs Project listed 28,095 closed pubs on 21 April 2015, with photographs of many. In 2015 the rate of pub closures came under the scrutiny of Parliament in the UK, with a promise of legislation to improve relations between owners and tenants.
Document 2: Pub: Many of London's pubs are known to have been used by famous people, but in some cases, such as the association between Samuel Johnson and Ye Olde Cheshire Cheese, this is speculative, based on little more than the fact that the person is known to have lived nearby. However, Charles Dickens is known to have visited the Cheshire Cheese, the Prospect of Whitby, Ye Olde Cock Tavern and many others. Samuel Pepys is also associated with the Prospect of Whitby and the Cock Tavern.
Document 3: Adnan al-Ghoul: Al-Ghoul lived in hiding and never spoke to the media. Pictures of the 46-year-old father of four were released by Hamas only after his death. On 26 September 2003, he reportedly attended a meeting with Mohammed Deif, Ismail Haniya, one of Hamas' political leaders, and the organisation's spiritual leader, Sheik Ahmed Yasin, when Israeli forces bombed the house where they gathered. Al-Ghoul's eldest son Bilal was killed in a 2001 air strike in Gaza, and his second son Mohammed was killed the following year along with a cousin during a botched raid in the family home in Maghazi, south of Gaza City.
Document 4: The Troubles: The Troubles Political map of Ireland Date 1968 -- 1998 Location Northern Ireland Violence occasionally spread to the Republic of Ireland, England, and mainland Europe Result Military stalemate Good Friday Agreement (1998) St Andrews Agreement (2006) Withdrawal of British forces taking part in Operation Banner Disarmament of paramilitary groups Continuing low - level armed conflict Belligerents State security forces United Kingdom British Armed Forces Royal Ulster Constabulary Ireland Irish Defence Forces Gardaí Irish republican paramilitaries Provisional IRA Official IRA (1969 -- 1972) Irish National Liberation Army (INLA) (1974 -- 1998) Irish People's Liberation Organisation (IPLO) (1986 -- 1992) Continuity IRA (1994 --) Real IRA (1997 --) Supported by: Libya (arms shipments) Ulster loyalist paramilitaries Ulster Volunteer Force (UVF) Ulster Defence Association (UDA) Red Hand Commando (RHC) Ulster Resistance (UR) (1986 -- 1989) Loyalist Volunteer Force (LVF) (1996 -- 1999) Casualties and losses British Army: 705 ∟ (inc. UDR) RUC: 301 NIPS: 24 TA: 7 Other UK police: 6 Royal Air Force: 4 Royal Navy: 2 Total: 1,049 Irish Army: 1 Gardaí: 9 IPS: 1 Total: 11 PIRA: 291 INLA: 39 OIRA: 27 IPLO: 9 RIRA: 2 Total: 368 UDA: 91 UVF: 62 RHC: 4 LVF: 3 UR: 2 Total: 162 Civilians killed: 1,841 (or 1,935 inc. ex-combatants) Total dead: 3,532 Total injured: 47,500 + All casualties: around 50,000
Document 5: Billy Bailey: Billy Bailey (January 1947 -- January 25, 1996) was a convicted murderer hanged in Delaware in 1996. He became only the third person to be hanged in the United States since 1965 (the previous two were Charles Rodman Campbell and Westley Allan Dodd, both in Washington) and the first person hanged in Delaware in 50 years.
Document 6: Billy Giles: Billy Giles (3 September 1957, Belfast – 25 September 1998, Belfast) was an Ulster Volunteer Force volunteer who later became active in politics following his release from the Maze Prison in 1997 after serving 14 years of a life sentence for murder.
Document 7: Pub: CAMRA maintains a "National Inventory" of historical notability and of architecturally and decoratively notable pubs. The National Trust owns thirty-six public houses of historic interest including the George Inn, Southwark, London and The Crown Liquor Saloon, Belfast, Northern Ireland.
Document 8: Pub: In Europe, it is the provision of accommodation, if anything, that now distinguishes inns from taverns, alehouses and pubs. The latter tend to provide alcohol (and, in the UK, soft drinks and often food), but less commonly accommodation. Inns tend to be older and grander establishments: historically they provided not only food and lodging, but also stabling and fodder for the traveller's horse(s) and on some roads fresh horses for the mail coach. Famous London inns include The George, Southwark and The Tabard. There is however no longer a formal distinction between an inn and other kinds of establishment. Many pubs use "Inn" in their name, either because they are long established former coaching inns, or to summon up a particular kind of image, or in many cases simply as a pun on the word "in", as in "The Welcome Inn", the name of many pubs in Scotland.
Document 9: Saint Helena: Today Saint Helena has its own currency, the Saint Helena pound, which is at parity with the pound sterling. The government of Saint Helena produces its own coinage and banknotes. The Bank of Saint Helena was established on Saint Helena and Ascension Island in 2004. It has branches in Jamestown on Saint Helena, and Georgetown, Ascension Island and it took over the business of the St. Helena government savings bank and Ascension Island Savings Bank.
Document 10: Pound sterling: The British Crown dependencies of Guernsey and Jersey produce their own local issues of sterling: the ``Guernsey pound ''and the`` Jersey pound''. The pound sterling is also used in the Isle of Man (alongside the Manx pound), Gibraltar (alongside the Gibraltar pound), the Falkland Islands (alongside the Falkland Islands pound), Saint Helena and Ascension Island in Saint Helena, Ascension and Tristan da Cunha (alongside the Saint Helena pound). The Bank of England is the central bank for the pound sterling, issuing its own coins and banknotes, and regulating issuance of banknotes by private banks in Scotland and Northern Ireland. Banknotes issued by other jurisdictions are not regulated by the Bank of England; local governments use Bank of England notes as backing for local issuance by allowing them to be exchanged 1: 1 at face value.
Document 11: Banknotes of the pound sterling: Banknotes of the Pound Sterling Pound sterling banknotes The UK & crown dependencies (red) and overseas territories (blue) using the Pound or their local issue ISO 4217 Code GBP (Great Britain Pound) Denominations Currency symbol £Subunit Penny (1 / 100) Subunit symbol p Banknotes Freq. used £5, £10, £20, £50 Rarely used £1 (Not used by the Bank of England or in NI), £100 (Not used by the Bank of England) Higher valued Banknotes do exist, such as the £1,000,000 (Giant) and £100,000,000 (Titan), however, usage is restricted ``- such as through backing Scottish and Northern Ireland Currencies ''Demographics Users United Kingdom Jersey Guernsey Isle of Man South Georgia and the South Sandwich Islands St Helena, Ascension and Tristan da Cunha (Tristan da Cunha only) Gibraltar. Issuance Central Bank Bank of England Note - issuing banks England and Wales Bank of England Scotland Bank of Scotland Royal Bank of Scotland Clydesdale Bank Northern Ireland Northern Bank / Danske Bank First Trust Bank Ulster Bank Bank of Ireland Crown dependencies States of Guernsey States of Jersey Isle of Man Government Printer De La Rue
Document 12: British Isles: There are two sovereign states in the isles: Ireland and the United Kingdom of Great Britain and Northern Ireland. Ireland, sometimes called the Republic of Ireland, governs five sixths of the island of Ireland, with the remainder of the island forming Northern Ireland. Northern Ireland is a part of the United Kingdom of Great Britain and Northern Ireland, usually shortened to simply the United Kingdom, which governs the remainder of the archipelago with the exception of the Isle of Man and the Channel Islands. The Isle of Man and the two states of the Channel Islands, Jersey and Guernsey, are known as the Crown Dependencies. They exercise constitutional rights of self-government and judicial independence; responsibility for international representation rests largely upon the UK (in consultation with the respective governments); and responsibility for defence is reserved by the UK. The United Kingdom is made up of four constituent parts: England, Scotland and Wales, forming Great Britain, and Northern Ireland in the north-east of the island of Ireland. Of these, Scotland, Wales and Northern Ireland have "devolved" governments meaning that they have their own parliaments/assemblies and are self-governing with respect to certain areas set down by law. For judicial purposes, Scotland, Northern Ireland and England and Wales (the latter being one entity) form separate legal jurisdiction, with there being no single law for the UK as a whole.
Document 13: Billy Caskey: Billy Caskey (born 10 December 1954 in Belfast) is a retired professional soccer midfielder from Northern Ireland. He played in the Irish Football League, Football League, North American Soccer League and Major Indoor Soccer League. He also earned seven caps, scoring one goal, with the Northern Ireland national football team between 1978 and 1982.
Document 14: One pound (British coin): The original, round £1 coin replaced the Bank of England £1 note, which ceased to be issued at the end of 1984 and was removed from circulation on 11 March 1988, though still redeemable at the Bank's offices, like all English banknotes. One - pound notes continue to be issued in Jersey, Guernsey and the Isle of Man, and by the Royal Bank of Scotland, but the pound coin is much more widely used. A new, dodecagonal (12 - sided) design of coin was introduced on 28 March 2017 and both new and old versions of the one pound coin circulated together until the older design was withdrawn from circulation on 15 October 2017. After that date, the older coin could only be redeemed at banks, although some retailers announced they would continue to accept it for a limited time. The original round pound remains legal tender on the Isle of Man.
Document 15: Pub: The highwayman Dick Turpin used the Swan Inn at Woughton-on-the-Green in Buckinghamshire as his base. In the 1920s John Fothergill (1876–1957) was the innkeeper of the Spread Eagle in Thame, Berkshire, and published his autobiography: An Innkeeper's Diary (London: Chatto & Windus, 1931). During his idiosyncratic occupancy many famous people came to stay, such as H. G. Wells. United States president George W. Bush fulfilled his lifetime ambition of visiting a 'genuine British pub' during his November 2003 state visit to the UK when he had lunch and a pint of non-alcoholic lager (Bush being a teetotaler) with British Prime Minister Tony Blair at the Dun Cow pub in Sedgefield, County Durham in Blair's home constituency. There were approximately 53,500 public houses in 2009 in the United Kingdom. This number has been declining every year, so that nearly half of the smaller villages no longer have a local pub.
ground_truth: pound sterling
sub_queries: At what location did Billy Giles die? Answer: Belfast
What part of the United Kingdom is Belfast located in? Answer: Northern Ireland
what is the unit of currency in Northern Ireland Answer: pound sterling