With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tony Blair is a politician.
text_B: The Prime Minister of the United Kingdom is the head of Her Majesty 's Government in the United Kingdom .. United Kingdom. United Kingdom. Prime Minister. Prime Minister. The Prime Minister -LRB- informal abbreviation  : PM -RRB- and Cabinet -LRB- consisting of all the most senior ministers , most of whom are government department heads -RRB- are collectively accountable for their policies and actions to the Monarch , to Parliament , to their political party and ultimately to the electorate .. Cabinet. Cabinet of the United Kingdom. Parliament. Parliament of the United Kingdom. Prime Minister. Prime Minister. ministers. minister ( government ). accountable. accountability. Monarch. Monarchy of the United Kingdom. political party. List of political parties in the United Kingdom. electorate. :wikt :electorate. The office is one of the Great Offices of State .. Great Offices of State. Great Offices of State. The , Theresa May , leader of the Conservative Party , was appointed by the Queen on 13 July 2016 .. Theresa May. Theresa May. Conservative Party. Conservative Party ( UK ). the Queen. Elizabeth II. The office is not established by any constitution or law but exists only by long-established convention , which stipulates that the monarch must appoint as Prime Minister the person most likely to command the confidence of the House of Commons ; this individual is typically the leader of the political party or coalition of parties that holds the largest number of seats in that chamber .. convention. Convention ( norm )#Government. House of Commons. House of Commons of the United Kingdom. Prime Minister. Prime Minister. political party. List of political parties in the United Kingdom. confidence. Confidence and supply. coalition. coalition government. The position of Prime Minister was not created ; it evolved slowly and erratically over three hundred years due to numerous acts of Parliament , political developments , and accidents of history .. Parliament. Parliament of the United Kingdom. Prime Minister. Prime Minister. The office is therefore best understood from a historical perspective .. The origins of the position are found in constitutional changes that occurred during the Revolutionary Settlement -LRB- 1688 -- 1720 -RRB- and the resulting shift of political power from the Sovereign to Parliament .. Parliament. Parliament of the United Kingdom. Although the Sovereign was not stripped of the ancient prerogative powers and legally remained the head of government , politically it gradually became necessary for him or her to govern through a Prime Minister who could command a majority in Parliament .. Parliament. Parliament of the United Kingdom. Prime Minister. Prime Minister. ancient prerogative powers. Royal prerogative in the United Kingdom. head of government. head of government. By the 1830s the Westminster system of government -LRB- or cabinet government -RRB- had emerged ; the Prime Minister had become primus inter pares or the first among equals in the Cabinet and the head of government in the United Kingdom .. Cabinet. Cabinet of the United Kingdom. Westminster. Westminster. United Kingdom. United Kingdom. Prime Minister. Prime Minister. Westminster system. Westminster system. primus inter pares. primus inter pares. head of government. head of government. The political position of Prime Minister was enhanced by the development of modern political parties , the introduction of mass communication -LRB- inexpensive newspapers , radio , television and the internet -RRB- , and photography .. Prime Minister. Prime Minister. By the start of the 20th century the modern premiership had emerged ; the office had become the pre-eminent position in the constitutional hierarchy vis-a-vis the Sovereign , Parliament and Cabinet .. Cabinet. Cabinet of the United Kingdom. Parliament. Parliament of the United Kingdom. Prior to 1902 , the Prime Minister sometimes came from the House of Lords , provided that his government could form a majority in the Commons .. Prime Minister. Prime Minister. House of Lords. House of Lords. However as the power of the aristocracy waned during the 19th century the convention developed that the Prime Minister should always sit in the lower house .. convention. Convention ( norm )#Government. Prime Minister. Prime Minister. As leader of the House of Commons , the Prime Minister 's authority was further enhanced by the Parliament Act of 1911 which marginalised the influence of the House of Lords in the law-making process .. Parliament. Parliament of the United Kingdom. House of Commons. House of Commons of the United Kingdom. Prime Minister. Prime Minister. House of Lords. House of Lords. Parliament Act of 1911. Parliament Act 1911. The Prime Minister is ex officio also First Lord of the Treasury and Minister for the Civil Service .. First Lord of the Treasury. First Lord of the Treasury. Prime Minister. Prime Minister. ex officio. ex officio. Minister for the Civil Service. Minister for the Civil Service. Certain privileges , such as residency of 10 Downing Street , are accorded to Prime Ministers by virtue of their position as First Lord of the Treasury .. 10 Downing Street. 10 Downing Street. First Lord of the Treasury. First Lord of the Treasury. residency. List of residents of 10 Downing Street
related.