Question: Which body of water is Len Graham's birthplace?

full_context: Document 1: County Antrim: In ancient times, Antrim was inhabited by a Celtic people called the Darini. In the early Middle Ages, southern County Antrim was part of the Kingdom of Ulidia, ruled by the Dál Fiatach clans Keenan and MacDonlevy/McDunlavey; the north was part of Dál Riada, which stretched into what is now western Scotland over the Irish Sea. Dál Riada was ruled by the O'Lynch clan, who were vassals of the Ulidians. Besides the Ulidians and Dál Riada, there were the Dál nAraide of lower County Antrim, and the Cruthin, who were pre-Gaelic Celts and probably related to the Picts of Britain. Between the 8th and 11th centuries Antrim was exposed to the inroads of the Vikings.
Document 2: Luke Kelly: Luke Kelly (17 November 1940 – 30 January 1984) was an Irish singer, folk musician and actor from Dublin, Ireland. Born into a working-class household in Dublin city, Kelly moved to England in his late teens and by his early 20s had become involved in a folk music revival. Returning to Dublin in the 1960s, he is noted as a founding member of the band The Dubliners. Becoming known for his distinctive singing style, and sometimes political messages, the "Irish Post" and other commentators have regarded Kelly as one of Ireland's greatest folk singers.
Document 3: Gartan: Gartan () is a parish in County Donegal, Ireland. It is best known for being the birthplace of Columba, one of the three patron saints of Ireland and one of the most revered saints in the Christian world. Here he founded a monastery in 521. The popular song "Gartan Mother's Lullaby" comes from the area, and has been performed by many artists, including American actress Meryl Streep.
Document 4: Mandolin: Noteworthy Irish mandolinists include Andy Irvine (who, like Johnny Moynihan, almost always tunes the top E down to D, to achieve an open tuning of GDAD), Paul Brady, Mick Moloney, Paul Kelly and Claudine Langille. John Sheahan and the late Barney McKenna, respectively fiddle player and tenor banjo player with The Dubliners, are also accomplished Irish mandolin players. The instruments used are either flat-backed, oval hole examples as described above (made by UK luthier Roger Bucknall of Fylde Guitars), or carved-top, oval hole instruments with arched back (made by Stefan Sobell in Northumberland). The Irish guitarist Rory Gallagher often played the mandolin on stage, and he most famously used it in the song "Going To My Hometown."
Document 5: Mary Sands: Mary Bullman Sands (April 8, 1872 – April 2, 1949), from Allanstand in Madison County, North Carolina, was a singer of old traditional ballads during the early part of the 20th century. She was known locally as "Singing Mary" due to her singing talent and extensive knowledge of the words and melodies of many old-time traditional songs that had been passed down through previous generations. In 1916, English folklorist Cecil Sharp visited Madison County to collect and record traditional folk songs being sung in America that would have originated generations earlier in the British Isles. Sands sang 25 songs for him, 23 of which he included in his book, "English Folk Songs from the Southern Appalachians".
Document 6: British Isles: At the time of the Roman Empire, about two thousand years ago, various tribes, which spoke Celtic dialects of the Insular Celtic group, were inhabiting the islands. The Romans expanded their civilisation to control southern Great Britain but were impeded in advancing any further, building Hadrian's Wall to mark the northern frontier of their empire in 122 AD. At that time, Ireland was populated by a people known as Hiberni, the northern third or so of Great Britain by a people known as Picts and the southern two thirds by Britons.
Document 7: Antrim Lower: Antrim Lower is a barony in County Antrim, Northern Ireland. It is bordered by six other baronies: Antrim Upper to the south; Toome Upper to the south-west; Toome Lower to the west; Kilconway to the north-west; Glenarm Lower to the north-east; and Glenarm Upper to the east. The River Braid flows through this barony.
Document 8: British Isles: Viking invasions began in the 9th century, followed by more permanent settlements, particularly along the east coast of Ireland, the west coast of modern-day Scotland and the Isle of Man. Though the Vikings were eventually neutralised in Ireland, their influence remained in the cities of Dublin, Cork, Limerick, Waterford and Wexford. England however was slowly conquered around the turn of the first millennium AD, and eventually became a feudal possession of Denmark. The relations between the descendants of Vikings in England and counterparts in Normandy, in northern France, lay at the heart of a series of events that led to the Norman conquest of England in 1066. The remnants of the Duchy of Normandy, which conquered England, remain associated to the English Crown as the Channel Islands to this day. A century later the marriage of the future Henry II of England to Eleanor of Aquitaine created the Angevin Empire, partially under the French Crown. At the invitation of a provincial king and under the authority of Pope Adrian IV (the only Englishman to be elected pope), the Angevins invaded Ireland in 1169. Though initially intended to be kept as an independent kingdom, the failure of the Irish High King to ensure the terms of the Treaty of Windsor led Henry II, as King of England, to rule as effective monarch under the title of Lord of Ireland. This title was granted to his younger son but when Henry's heir unexpectedly died the title of King of England and Lord of Ireland became entwined in one person.
Document 9: Alec O'Leary: Alec O'Leary (M.Mus., B.Mus., Dip. Inst. Teaching) is the director and founder of the Guitar Festival of Ireland and is widely regarded as one of the foremost guitarists of his generation. He has spent many years studying guitar with John Feeley at the DIT Conservatory of Music and Drama, Dublin, and has had tuition from many distinguished players, such as Manuel Barreuco, Roland Dyens, Scott Tennant, Sergio Assad, Elena Papandreou and Fabio Zannon. O'Leary plays regularly both as a soloist and in ensemble and has performed many times on both national radio and television. He plays guitars made for him by renowned Irish luthier Michael J. O'Leary.
Document 10: History of Ireland: By the 12th century, Ireland was divided politically into a shifting hierarchy of petty kingdoms and over-kingdoms. Power was exercised by the heads of a few regional dynasties vying against each other for supremacy over the whole island. One of these men, King Diarmait Mac Murchada of Leinster was forcibly exiled by the new High King, Ruaidri mac Tairrdelbach Ua Conchobair of the Western kingdom of Connacht. Fleeing to Aquitaine, Diarmait obtained permission from Henry II to recruit Norman knights to regain his kingdom. The first Norman knight landed in Ireland in 1167, followed by the main forces of Normans, Welsh and Flemings. Several counties were restored to the control of Diarmait, who named his son - in - law, the Norman Richard de Clare, known as Strongbow, heir to his kingdom. This troubled King Henry, who feared the establishment of a rival Norman state in Ireland. Accordingly, he resolved to establish his authority. In 1177 Prince John Lackland was made Lord of Ireland by his father Henry II of England at the Council of Oxford.
Document 11: British Isles: Hiberni (Ireland), Pictish (northern Britain) and Britons (southern Britain) tribes, all speaking Insular Celtic, inhabited the islands at the beginning of the 1st millennium AD. Much of Brittonic-controlled Britain was conquered by the Roman Empire from AD 43. The first Anglo-Saxons arrived as Roman power waned in the 5th century and eventually dominated the bulk of what is now England. Viking invasions began in the 9th century, followed by more permanent settlements and political change—particularly in England. The subsequent Norman conquest of England in 1066 and the later Angevin partial conquest of Ireland from 1169 led to the imposition of a new Norman ruling elite across much of Britain and parts of Ireland. By the Late Middle Ages, Great Britain was separated into the Kingdoms of England and Scotland, while control in Ireland fluxed between Gaelic kingdoms, Hiberno-Norman lords and the English-dominated Lordship of Ireland, soon restricted only to The Pale. The 1603 Union of the Crowns, Acts of Union 1707 and Acts of Union 1800 attempted to consolidate Britain and Ireland into a single political unit, the United Kingdom of Great Britain and Ireland, with the Isle of Man and the Channel Islands remaining as Crown Dependencies. The expansion of the British Empire and migrations following the Irish Famine and Highland Clearances resulted in the distribution of the islands' population and culture throughout the world and a rapid de-population of Ireland in the second half of the 19th century. Most of Ireland seceded from the United Kingdom after the Irish War of Independence and the subsequent Anglo-Irish Treaty (1919–1922), with six counties remaining in the UK as Northern Ireland.
Document 12: Lancashire: Lancashire has a long and highly productive tradition of music making. In the early modern era the county shared in the national tradition of balladry, including perhaps the finest border ballad, "The Ballad of Chevy Chase", thought to have been composed by the Lancashire-born minstrel Richard Sheale. The county was also a common location for folk songs, including "The Lancashire Miller", "Warrington Ale" and "The soldier's farewell to Manchester", while Liverpool, as a major seaport, was the subject of many sea shanties, including "The Leaving of Liverpool" and "Maggie May", beside several local Wassailing songs. In the Industrial Revolution changing social and economic patterns helped create new traditions and styles of folk song, often linked to migration and patterns of work. These included processional dances, often associated with rushbearing or the Wakes Week festivities, and types of step dance, most famously clog dancing.
Document 13: Len Graham (singer): Len Graham is an Irish traditional singer and song collector from County Antrim, Northern Ireland. He is a leading authority on Folk music in Ireland.
Document 14: Dunluce Upper: Dunluce Upper is a barony in County Antrim, Northern Ireland. It is bordered by six other baronies: Dunluce Lower to the north; Cary to the north-east; North East Liberties of Coleraine to the north-west; Coleraine to the west; Kilconway to the south; and Glenarm Lower to the east. Dunluce Upper also formed part of the medieval territory known as the Route.
Document 15: Colin Reid: Colin Reid is an acoustic guitarist from Belfast, Northern Ireland. He launched his solo career in 1997 after supporting performances with other leading musicians such as Brian Kennedy and Waterson–Carthy. He was a guitar teacher for many years and formalised his skills at the Musicians Institute of Technology. He has run guitar courses in the Crescent Arts Centre in the past.
ground_truth: Irish Sea
sub_queries: Len Graham >> place of birth Answer: County Antrim
Which is the body of water by County Antrim ? Answer: Irish Sea