Question: Who picks the prime minister in the country of citizenship of the prime minister who was appointed only once?

full_context: Document 1: Edinburgh: Banking has been a mainstay of the Edinburgh economy for over 300 years, since the Bank of Scotland (now part of the Lloyds Banking Group) was established by an act of the Scottish Parliament in 1695. Today, the financial services industry, with its particularly strong insurance and investment sectors, and underpinned by Edinburgh-based firms such as Scottish Widows and Standard Life Aberdeen, accounts for the city being the UK's second financial centre after London and Europe's fourth in terms of equity assets. The Royal Bank of Scotland opened new global headquarters at Gogarburn in the west of the city in October 2005, and Edinburgh is home to the headquarters of Bank of Scotland, Sainsbury's Bank, Tesco Bank, TSB Bank and Virgin Money.
Document 2: Prime minister: Most prime ministers in parliamentary systems are not appointed for a specific term in office and in effect may remain in power through a number of elections and parliaments. For example, Margaret Thatcher was only ever appointed prime minister on one occasion, in 1979. She remained continuously in power until 1990, though she used the assembly of each House of Commons after a general election to reshuffle her cabinet.
Document 3: Financial Services Act 1986: The Financial Services Act 1986 (1986 c.60) was an Act of the Parliament of the United Kingdom passed by the government of Margaret Thatcher to regulate the financial services industry. The Act used a mixture of governmental regulation and self-regulation, and created a Securities and Investments Board (SIB) presiding over various new self-regulating organisations (SROs). It was superseded by the Financial Services and Markets Act 2000.
Document 4: Financial Stability and Development Council: Financial Stability and Development Council (FSDC) is an apex - level body constituted by the government of India. The idea to create such a super regulatory body was first mooted by the Raghuram Rajan Committee in 2008. Finally in 2010, the then Finance Minister of India, Pranab Mukherjee, decided to set up such an autonomous body dealing with macro prudential and financial regularities in the entire financial sector of India. An apex - level FSDC is not a statutory body. The recent global economic meltdown has put pressure on governments and institutions across the globe to regulate their economic assets. This council is seen as India's initiative to be better conditioned to prevent such incidents in future. The new body envisages to strengthen and institutionalise the mechanism of maintaining financial stability, financial sector development, inter-regulatory coordination along with monitoring macro-prudential regulation of economy.
Document 5: Prime Minister of Australia: Prime Minister of Australia Commonwealth Coat of Arms Incumbent Malcolm Turnbull since 15 September 2015 Government of Australia Department of the Prime Minister and Cabinet Style The Honourable (formal) Prime Minister (spoken) His / Her Excellency (in international correspondence) Member of Cabinet National Security Committee Federal Executive Council Reports to Parliament, Governor - General Residence The Lodge Kirribilli House Seat Canberra Appointer Governor - General of Australia by convention, based on appointee's ability to command confidence in the House of Representatives Term length At the Governor - General's pleasure contingent on the Prime Minister's ability to command confidence in the lower house of Parliament Inaugural holder Edmund Barton Formation 1 January 1901 Deputy Michael McCormack Salary $527,852 (AUD) Website pm.gov.au
Document 6: Prime minister: The United Kingdom's constitution, being uncodified and largely unwritten, makes no mention of a prime minister. Though it had de facto existed for centuries, its first mention in official state documents did not occur until the first decade of the twentieth century. Accordingly, it is often said "not to exist", indeed there are several instances of parliament declaring this to be the case. The prime minister sits in the cabinet solely by virtue of occupying another office, either First Lord of the Treasury (office in commission), or more rarely Chancellor of the Exchequer (the last of whom was Balfour in 1905).
Document 7: Prime Minister of the United Kingdom: Prime Minister of the United Kingdom of Great Britain and Northern Ireland Royal Arms used by Her Majesty's Government Incumbent Theresa May since 13 July 2016 (2016 - 07 - 13) Government of the United Kingdom Office of the Prime Minister Style Prime Minister (informal) The Right Honourable (within the UK and the Commonwealth) His / Her Excellency (in international correspondence) Member of Cabinet Privy Council European Council British -- Irish Council Reports to Parliament Residence 10 Downing Street Chequers Seat Westminster Appointer Monarch of the United Kingdom Term length At Her Majesty's pleasure Inaugural holder Sir Robert Walpole as First Lord of the Treasury and de facto first Prime Minister. Formation 4 April 1721 Salary £151,451 annual, including £76,011 MP's salary Website Official website
Document 8: Superannuation in Australia: Superannuation funds are principally regulated under the Superannuation Industry (Supervision) Act 1993 and the Financial Services Reform Act 2002. Compulsory employer contributions are regulated via the Superannuation Guarantee (Administration) Act 1992
Document 9: Prime Minister of the United Kingdom: The Prime Minister of the United Kingdom is the head of Her Majesty's Government in the United Kingdom. The Prime Minister (informally abbreviated to PM) and Cabinet (consisting of all the most senior ministers, most of whom are government department heads) are collectively accountable for their policies and actions to the Monarch, to Parliament, to their political party and ultimately to the electorate. The office is one of the Great Offices of State. The current holder of the office, Theresa May, leader of the Conservative Party, was appointed by the Queen on 13 July 2016.
Document 10: Prime Minister of Canada: The Canadian prime minister serves at Her Majesty's pleasure, meaning the post does not have a fixed term. Once appointed and sworn in by the governor general, the prime minister remains in office until he or she resigns, is dismissed, or dies. The lifespan of parliament was limited by the constitution to five years and, though the governor general may still, on the advice of the prime minister, dissolve parliament and issue the writs of election prior to the date mandated by the Canada Elections Act; the King -- Byng Affair was the only time since Confederation that the governor general deemed it necessary to refuse his prime minister's request for a general vote. As of 2007, with an amendment to the Elections Act, Section 56.1 (2) was changed to limit the term of a majority government to four years, with election day being set as the third Monday in October of the fourth calendar year after the previous polling date.
Document 11: Prime Minister of India: Prime Minister of the Government of India State Emblem of India Flag of India Incumbent Narendra Modi since 26 May 2014 (2014 - 05 - 26) Prime Minister's Office Style The Honourable (formal) His Excellency (in diplomatic correspondence) Status Head of government Abbreviation PM Member of Cabinet, parliament Residence 7, Lok Kalyan Marg, New Delhi Seat Prime Minister's Office, South Block, New Delhi Appointer President of India by convention, based on appointee's ability to command confidence in the Lok Sabha Term length At the pleasure of the president Lok Sabha term is 5 years unless dissolved sooner No term limits specified Inaugural holder Jawaharlal Nehru (1947 - 1964) Formation 15 August 1947; 70 years ago (1947 - 08 - 15) Deputy Deputy Prime Minister of India (if any) Salary ₹20 lakh (US $31,000) (annual, including ₹960,000 (US $15,000) MP's salary) Website pmindia.gov.in
Document 12: Government of the United Kingdom: The current prime minister is Theresa May, who took office on 13 July 2016. She is the leader of the Conservative Party, which won a majority of seats in the House of Commons in the general election on 7 May 2015, when David Cameron was the party leader; although at the last general election she failed to secure a majority government. Prior to this, Cameron and the Conservatives led a coalition from 2010 to 2015 with the Liberal Democrats, in which Cameron was prime minister.
Document 13: Prime minister: From 1721 this was the Whig politician Robert Walpole, who held office for twenty-one years. Walpole chaired cabinet meetings, appointed all the other ministers, dispensed the royal patronage and packed the House of Commons with his supporters. Under Walpole, the doctrine of cabinet solidarity developed. Walpole required that no minister other than himself have private dealings with the king, and also that when the cabinet had agreed on a policy, all ministers must defend it in public, or resign. As a later prime minister, Lord Melbourne, said, "It matters not what we say, gentlemen, so long as we all say the same thing."
Document 14: Securities commission: There is no common name for securities commission or financial regulatory agency in each country. Naming has become more complicated as some governments have consolidated or merged organisations and given them a wider remit. They sometimes contain the term securities and commission. Such as the Securities and Exchange Commission of the US or Securities and Futures Commission (Hong Kong). A number also have names based on Financial Authority, such as the Financial Services Authority of the UK or Financial Supervisory Authority (Sweden) or variations such as the Financial Services Agency (Japan).
Document 15: Prime Minister of Canada: Prime Minister of Canada Logo of the Prime Minister of Canada Incumbent Justin Trudeau since November 4, 2015 Executive Branch of the Government of Canada Office of the Prime Minister Style The Right Honourable (formal) Prime Minister (informal) His Excellency (diplomatic) Abbreviation PM Member of Queen's Privy Council Cabinet Parliament Reports to Monarch Governor General Parliament Residence 24 Sussex Drive (under renovation) Harrington Lake (seasonal) Rideau Cottage (temporary) Seat 80 Wellington St, Ottawa, ON K1P 5K9 Appointer Governor General Term length At Her Majesty's pleasure Constituting instrument None (constitutional convention) Inaugural holder Sir John A. Macdonald Formation July 1, 1867 Deputy Deputy Prime Minister of Canada (vacant) Salary $347,400 CAD (2018) Website www.pm.gc.ca
ground_truth: Monarch of the United Kingdom
sub_queries: Which prime minister was appointed only one time? Answer: Margaret Thatcher
Margaret Thatcher >> country of citizenship Answer: United Kingdom
in United Kingdom who picks the prime minister Answer: Monarch of the United Kingdom