Question: Michael Heaney is an Irish professional rugby union player for Ulster Rugby, responsible for rugby union throughout the geographical Irish province of Ulster, which comprises how many counties in Northern Ireland?

Context paragraphs:
Matthew Silva: Matthew Silva (born 15 March 1970 in Tremorfa, Cardiff) is a Welsh rugby union and professional rugby league footballer who played in the 1980s, 1990s, and 2000s, and current rugby union coach, playing club level rugby union (RU) for St Albans RFC (Cardiff), Llandaff RFC, Newport RFC, Pontypool RFC, Newbridge RFC, West Hartlepool R.F.C., Cardiff RFC, Treorchy RFC, Rumney RFC, and Llantwit Major RFC, as a Number Eight, Fly-half, Centre, Wing, Fullback, and playing representative level rugby league (RL) for Wales, and at club level for Halifax, as a fullback , i.e. number 1, and coaching club level rugby union (RU) for Llantwit Major RFC, Beddau RFC, Cardiff RFC, and Rumney RFC, and Cardiff Blues Under-16, Under-18, and Under-20 and Bridgend Ravens RFC, from 2005 to 2013 he was the Welsh Rugby Union/Cardiff Blues Player Development Officer for the Vale of Glamorgan.  From 2013 to 2015 he was Director of Rugby at Cowbridge Comprehensive School and was responsible for establishing the Rugby Academy that competes in the Welsh Rugby Union National Colleges League.  In 2015 he became the Welsh Rugby Union and Ospreys Coach Development Officer.

Ulster Rugby: Ulster Rugby (Irish: "Rugbaí Uladh" ) is one of the four professional provincial rugby teams from the island of Ireland.  They compete in the Pro14 and the European Rugby Champions Cup.  The team represents the Irish Rugby Football Union (IRFU) Ulster Branch, which is one of the four primary branches of the IRFU and is responsible for rugby union throughout the geographical Irish province of Ulster, comprising six counties in Northern Ireland and three counties in the Republic of Ireland.

Chris Cochrane: Chris Cochrane (born 18 December 1988) is an Irish professional rugby union player for Ulster Rugby. His favored position is wing.

Leinster Rugby: Leinster Rugby (Irish: "Rugbaí Laighean" ) is one of the four professional provincial rugby teams from the island of Ireland and the most successful Irish team both domestically and in European competition.  They compete in the Pro14 and the European Rugby Champions Cup.  The team represents the Irish Rugby Football Union (IRFU) Leinster Branch, which is one of four primary branches of the IRFU and is responsible for rugby union throughout the geographical Irish province of Leinster.

Connacht Rugby: Connacht Rugby (Irish: "Rugbaí Connachta" ) is one of the four professional provincial rugby teams from the island of Ireland.  Connacht competes in the Pro14 and the European Rugby Challenge Cup.  The team represents the IRFU Connacht Branch, which is one of four primary branches of the IRFU, and is responsible for rugby union throughout the geographical Irish province of Connacht.

Munster Rugby: Munster Rugby (Irish: "Rugbaí Mumhan" ) is one of the four professional provincial rugby teams from the island of Ireland.  They compete in the Pro14 and the European Rugby Champions Cup.  The team represents the IRFU Munster Branch, which is one of four primary branches of the IRFU, and is responsible for rugby union throughout the geographical Irish province of Munster.

Ross Molony: Ross Molony (11 May 1994) is an Irish professional rugby union player, who plays in the second-row position for Irish province Leinster.  Still in the academy for the 2015-16 season, he has nonetheless featured and impressed in the senior team, earning his first full professional contract from the 2016-17 season.  He previously played for the Ireland national under-20 rugby union team in the Junior World Championship and u-20 Six Nations tournaments, and also represented Leinster at underage level.  Aged just 21 and playing in a highly physical position where players often peak in their mid-thirties, Molony was given the man of the match award in his European Champions' Cup debut in Leinster's 25-11 home win over Bath Rugby.

Seamus Mallon (rugby union): Seamus Mallon, (born 21 November 1980) was an Irish professional rugby union player for Ulster Rugby in the Celtic League, who was formerly a player for Northampton Saints in the Guinness Premiership. (Photo) Mallon was signed as a centre with the Saints in July 2005.  He formerly played for his school-teams, Foyle and Londonderry College and St. Columb's College in Derry and Ulster.  He now plays his rugby for Dungannon RFC where he is also a coach.  He was employed at the Wallace High School in Lisburn for a short period of time, but left in 2014 to take up a position with Cambridge House Grammar School]], Ballymena as a Technology & Design teacher, where he continues to teach.

Michael Heaney: Michael Heaney is an Irish professional rugby union player for Ulster Rugby.  His favored position is scrum half.  Heaney has represented Ireland at U-20 level.

Stuart McCloskey: Stuart McCloskey (born 6 August 1992) is an Irish professional rugby union player for Ulster Rugby.  His position of choice is centre.  Big and imposing (6 ft 4in in height and 113 kg, nearly 18 stone, in weight), he has the build of a modern centre.

Supporting paragraphs: Michael Heaney Ulster Rugby
Answer: six